Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells.
Tissue is a group of cells that work together to perform a specific function. There are four main types of animal tissue: connective, muscle, nervous, and epithelial tissue. Connective tissue provides structure and binds other tissues together. Muscle tissue allows for movement. Nervous tissue transmits electrical signals. Epithelial tissue forms protective layers. Plant tissues include epidermal tissue which forms the outer plant layers, ground tissue which carries out photosynthesis, and vascular tissue which transports fluids.
1) Muscular tissue is composed of three main types - skeletal, smooth, and cardiac muscle. Skeletal muscle is striated and voluntary, attaching to bones, while smooth muscle is involuntary and not striated, found in organs and blood vessels. Cardiac muscle is striated and involuntary, unique to the heart.
2) All muscle types contain bundles of proteins called myofilaments that slide past each other to cause contraction. Skeletal muscle contains sarcomeres with overlapping actin and myosin filaments. Smooth muscle lacks sarcomeres but contains dense bodies. Cardiac muscle contains intercalated discs allowing synchronized contraction.
3) Contraction is initiated by calcium release from the sarcoplasmic retic
The document discusses the four main types of tissues - epithelial, connective, muscle and nervous. It provides details on the structure and function of each tissue type, including examples of where they are found in the body. The key points are that tissues are groups of cells that perform specific functions, and organs are made up of different tissue types working together to perform vital processes like breathing and movement.
This document defines and describes the four main types of tissues in the human body: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. Epithelial tissue covers organs and lines cavities, providing protection, absorption, secretion and other functions. Connective tissue forms a framework and support structure for other tissues and organs. Muscle tissue is composed of cells that contract to produce movement. Nervous tissue forms the brain, spinal cord and nerves, and regulates and controls body functions through transmission of electrical signals.
The document describes the four main types of tissues in the body - epithelial, connective, muscle, and nervous tissue. It provides details on the structure and functions of each type of tissue, including that epithelial tissue covers surfaces, connective tissue is supportive, muscle tissue contracts to produce movement, and nervous tissue responds to environmental changes and sends signals between cells.
Muscular tissue is composed of muscle fibers that contract in response to electrical signals. There are three types of muscle tissue - skeletal, cardiac, and smooth muscle. Skeletal muscle is striated, voluntary, and attached to bones. It contracts through a sliding filament mechanism where actin and myosin interact powered by ATP hydrolysis. At the neuromuscular junction, a nerve impulse triggers the release of acetylcholine which binds receptors and generates a muscle action potential, causing contraction.
This document provides an overview of the four main types of tissues in the human body - nervous, muscle, epithelial and connective tissues. It explains that tissues are groups of similar cells that work together to perform a common function, and that multiple tissues combine to form organs. It then delves into each tissue type in more detail, describing the different cells that comprise the tissues and their various functions, such as neurons and glial cells in nervous tissue, and the roles of cartilage, bone and blood in connective tissues.
Muscle tissue is composed of bundles of long cells called muscle fibers that contract through the overlapping of actin and myosin proteins. There are three main types of muscle tissue - skeletal, cardiac, and smooth muscle. Skeletal muscle is striated, multinucleated, and voluntary. It attaches to bones via tendons and facilitates movement, posture, and heat generation. Cardiac muscle is striated and involuntary, found only in the heart, where its contractions pump blood. Smooth muscle is non-striated, involuntary muscle that forms sheets in organs to generate movements like peristalsis.
Tissue is a group of cells that work together to perform a specific function. There are four main types of animal tissue: connective, muscle, nervous, and epithelial tissue. Connective tissue provides structure and binds other tissues together. Muscle tissue allows for movement. Nervous tissue transmits electrical signals. Epithelial tissue forms protective layers. Plant tissues include epidermal tissue which forms the outer plant layers, ground tissue which carries out photosynthesis, and vascular tissue which transports fluids.
1) Muscular tissue is composed of three main types - skeletal, smooth, and cardiac muscle. Skeletal muscle is striated and voluntary, attaching to bones, while smooth muscle is involuntary and not striated, found in organs and blood vessels. Cardiac muscle is striated and involuntary, unique to the heart.
2) All muscle types contain bundles of proteins called myofilaments that slide past each other to cause contraction. Skeletal muscle contains sarcomeres with overlapping actin and myosin filaments. Smooth muscle lacks sarcomeres but contains dense bodies. Cardiac muscle contains intercalated discs allowing synchronized contraction.
3) Contraction is initiated by calcium release from the sarcoplasmic retic
The document discusses the four main types of tissues - epithelial, connective, muscle and nervous. It provides details on the structure and function of each tissue type, including examples of where they are found in the body. The key points are that tissues are groups of cells that perform specific functions, and organs are made up of different tissue types working together to perform vital processes like breathing and movement.
This document defines and describes the four main types of tissues in the human body: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. Epithelial tissue covers organs and lines cavities, providing protection, absorption, secretion and other functions. Connective tissue forms a framework and support structure for other tissues and organs. Muscle tissue is composed of cells that contract to produce movement. Nervous tissue forms the brain, spinal cord and nerves, and regulates and controls body functions through transmission of electrical signals.
The document describes the four main types of tissues in the body - epithelial, connective, muscle, and nervous tissue. It provides details on the structure and functions of each type of tissue, including that epithelial tissue covers surfaces, connective tissue is supportive, muscle tissue contracts to produce movement, and nervous tissue responds to environmental changes and sends signals between cells.
Muscular tissue is composed of muscle fibers that contract in response to electrical signals. There are three types of muscle tissue - skeletal, cardiac, and smooth muscle. Skeletal muscle is striated, voluntary, and attached to bones. It contracts through a sliding filament mechanism where actin and myosin interact powered by ATP hydrolysis. At the neuromuscular junction, a nerve impulse triggers the release of acetylcholine which binds receptors and generates a muscle action potential, causing contraction.
This document provides an overview of the four main types of tissues in the human body - nervous, muscle, epithelial and connective tissues. It explains that tissues are groups of similar cells that work together to perform a common function, and that multiple tissues combine to form organs. It then delves into each tissue type in more detail, describing the different cells that comprise the tissues and their various functions, such as neurons and glial cells in nervous tissue, and the roles of cartilage, bone and blood in connective tissues.
Muscle tissue is composed of bundles of long cells called muscle fibers that contract through the overlapping of actin and myosin proteins. There are three main types of muscle tissue - skeletal, cardiac, and smooth muscle. Skeletal muscle is striated, multinucleated, and voluntary. It attaches to bones via tendons and facilitates movement, posture, and heat generation. Cardiac muscle is striated and involuntary, found only in the heart, where its contractions pump blood. Smooth muscle is non-striated, involuntary muscle that forms sheets in organs to generate movements like peristalsis.
This document provides an overview of the structure and function of mammalian tissues, with a focus on four primary tissue types: epithelial, connective, muscle, and nervous tissue. It describes the classification, location, and functions of different tissue types, such as simple and stratified epithelial tissue, areolar and adipose connective tissue, skeletal and smooth muscle tissue, and neurons and neuroglia in nervous tissue. The goal is to emphasize the relationship between tissue structure and physiological function.
This document discusses the four main types of animal tissues: connective tissue, muscle tissue, nervous tissue, and epithelial tissue. It provides details on each type of tissue, including their function and examples. Connective tissue includes cells separated by an extracellular matrix and provides structure and support. Muscle tissue produces movement and includes three types: smooth, skeletal, and cardiac muscle. Nervous tissue forms the brain, spinal cord, and nerves. Epithelial tissue covers organ surfaces like skin and provides barriers for protection, secretion, and absorption.
The document provides an overview of the muscular system including the three types of muscle tissues - skeletal, cardiac, and smooth muscle. It describes the microscopic anatomy of skeletal muscle fibers and their sarcomere structure. The sliding filament theory of muscle contraction is explained, involving the interaction of the thick myosin and thin actin filaments through ATP hydrolysis. Contraction is triggered by an action potential causing calcium release and the binding of myosin heads to actin, pulling the Z-lines inward.
The document discusses the four primary tissue types found in the human body: bone, blood, muscle, and nervous tissue. It provides details on the function, characteristics, and location of each type of tissue. It also covers the body's response to injury, how tissues change throughout life, and factors that affect tissue health like age, nutrition, and circulation.
This document discusses the four basic types of tissues in the body - epithelial, connective, muscle, and neural tissue. It describes the structure and functions of each tissue type and some key subtypes. The document also covers how tissues are affected by injury, aging, and cancer development over time. Tissues regenerate through inflammation and healing processes, though regeneration abilities decline with age. Cancer rates also increase as people age due to genetic and environmental factors.
There are four main types of tissues in the human body: connective tissue, epithelial tissue, muscle tissue, and nervous tissue. Connective tissue protects, supports, and binds other tissues. It includes bone, cartilage, fat, and blood. Epithelial tissue forms linings and coverings and produces secretions. It includes skin and lung linings. Muscle tissue contracts to enable movement and includes skeletal, cardiac, and smooth muscle. Nervous tissue conducts electrical signals to carry information throughout the brain, spinal cord, nerves, and sensory organs.
Connective tissue connects and supports other tissues in the body. It has several functions including mechanical support, transport of nutrients and waste, energy storage, and defense. Connective tissue is composed of collagen, elastic, and reticular fibers. It can be classified as loose connective tissue including areolar and adipose tissue, dense connective tissue including regular and irregular tissue, cartilage including hyaline, fibro, and elastic cartilage, bone tissue, and liquid connective tissue including blood and lymph. Loose connective tissue forms a network and fills spaces between organs, dense connective tissue has densely packed fibers, and cartilage and bone provide structure and support.
This document summarizes key concepts about animal tissues and organ systems. It discusses the four main tissue types - epithelial, connective, muscle and nervous tissue - and how they are organized into organs and organ systems. Specific organ systems covered include the integumentary, skeletal, circulatory and respiratory systems. Skin is presented as an example organ system consisting of epithelial and connective tissues. The structure and function of skin and its role in protection, temperature regulation and sensation are described. The document concludes by noting potential medical applications of skin, such as growing skin substitutes or harvesting stem cells.
Tissue is a group of cells that work together to perform a specific function. There are four main types of tissues: epithelial, connective, muscle, and nervous tissue. Connective tissue provides structural support and connects other tissues throughout the body. It is made of cells, fibers, and extracellular matrix embedded in fluid. Connective tissue includes tendons, ligaments, adipose tissue, and blood. It has many important functions like connecting and protecting organs, storing energy, and providing a structural framework.
The document discusses the four main types of tissues in the body: epithelial, nervous, muscular, and connective tissue. It provides examples of different epithelial tissues like stratified cuboidal and simple squamous epithelium. It describes the functions of nervous tissue in conducting impulses and bringing about responses to stimuli. The document outlines the three types of muscular tissue: skeletal, smooth, and cardiac. Finally, it lists several types of connective tissues, including loose connective tissue, adipose tissue, reticular tissue, dense regular fibrosis, bone, hyaline cartilage, and fibrocartilage.
This document summarizes different types of tissues in the body. It discusses four major tissue groups: epithelial, connective, muscular and nervous tissue. Epithelial tissue forms protective layers and linings. Connective tissue includes adipose, cartilage and bone tissue that connect and support other tissues. There are three types of muscle tissue - smooth, skeletal and cardiac - that allow movement. The document provides detailed descriptions of each tissue type including their structure, function and cellular composition.
This document summarizes the four main types of tissues in the human body: epithelial, connective, muscular, and nervous tissue. It describes the structure and function of each type of tissue and some examples. Epithelial tissues form protective barriers and allow for material exchange. Connective tissues include blood, lymph, bones, cartilage, and more, providing structure and transport functions. Muscular tissues allow for movement and include three main types. Nervous tissue forms the nervous system and is composed of neurons that transmit electrical signals.
Skeletal muscle is composed of fibers that contain myofibrils made up of actin and myosin filaments. The sliding of these filaments causes muscle contraction via the sarcomere, the basic contractile unit. There are three main types of muscle tissue - skeletal, cardiac, and smooth. Skeletal muscle is striated and voluntary, attaching to bones to enable movement. Cardiac muscle is exclusively found in the heart walls and has involuntary, rhythmic contractions. Smooth muscle lacks striations and has involuntary, sustained contractions that support functions like digestion.
This document provides information on the four basic tissue types - epithelial, connective, muscle and nervous tissue. It describes each tissue type in detail, including their characteristic roles and functions. For epithelial tissue, it discusses the different classifications including simple and stratified epithelium as well as glandular tissues. It also covers the key components and functions of connective, muscle and nervous tissues.
There are four main types of tissues in the animal body: epithelial, connective, muscular and nervous tissue. Epithelial tissue forms the covering and lining of structures throughout the body, including skin, blood vessels and organs. Connective tissue connects and supports other tissues and includes blood, bone, cartilage and fat. Muscular tissue contains elongated muscle cells that allow for movement. Nervous tissue is made up of neurons that transmit signals throughout the body and brain to control movement and functions.
There are four main types of tissues in the body: epithelial, connective, muscular, and nervous tissue. Muscular tissue is classified into three types - skeletal, cardiac, and smooth muscle - based on location and voluntary/involuntary control. Nervous tissue consists of neurons, which conduct nerve impulses, and neuroglial cells which nourish and support neurons. The main cell types of nervous tissue are neurons, astrocytes, microglia, oligodendrocytes and ependymal cells.
The document discusses cell and tissue types in the human body. It begins by outlining the hierarchical organization of biological structures from atoms to the biosphere. It then discusses how cellular differentiation through mitosis allows for the formation of complex multicellular organisms. The main animal tissue types are identified as epithelial, nervous, muscle, and connective tissues. Each tissue type is described in terms of its characteristic cell types and functions. Connective tissue is discussed in further detail regarding its main cell types, extracellular matrix components like collagen and elastic fibers, and examples of connective tissue diseases.
This document summarizes the histological features of musculoskeletal tissues, including bone, cartilage, skeletal muscle, tendons, ligaments, and peripheral nerves. It describes the main cell types found in bone (osteoblasts, osteocytes, osteoclasts) and their functions. It also discusses the microscopic structure of cortical and cancellous bone, cartilage, skeletal muscle, and peripheral nerves. Key components are highlighted, such as osteons in cortical bone, trabeculae in cancellous bone, the extracellular matrix of cartilage, and the sarcomere structure of muscle fibers.
There are four main types of tissues in the body: epithelial, connective, muscular, and nervous tissue. Muscular tissue is classified into three types - skeletal, cardiac, and smooth muscle - based on location and voluntary/involuntary control. Nervous tissue consists of neurons, which conduct nerve impulses, and neuroglial cells, which nourish and support neurons. The main cell types of nervous tissue are neurons, astrocytes, microglia, oligodendrocytes, and ependymal cells.
Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells. This may be abundant in some tissues and minimal in others.
This document provides an overview of the structure and function of mammalian tissues, with a focus on four primary tissue types: epithelial, connective, muscle, and nervous tissue. It describes the classification, location, and functions of different tissue types, such as simple and stratified epithelial tissue, areolar and adipose connective tissue, skeletal and smooth muscle tissue, and neurons and neuroglia in nervous tissue. The goal is to emphasize the relationship between tissue structure and physiological function.
This document discusses the four main types of animal tissues: connective tissue, muscle tissue, nervous tissue, and epithelial tissue. It provides details on each type of tissue, including their function and examples. Connective tissue includes cells separated by an extracellular matrix and provides structure and support. Muscle tissue produces movement and includes three types: smooth, skeletal, and cardiac muscle. Nervous tissue forms the brain, spinal cord, and nerves. Epithelial tissue covers organ surfaces like skin and provides barriers for protection, secretion, and absorption.
The document provides an overview of the muscular system including the three types of muscle tissues - skeletal, cardiac, and smooth muscle. It describes the microscopic anatomy of skeletal muscle fibers and their sarcomere structure. The sliding filament theory of muscle contraction is explained, involving the interaction of the thick myosin and thin actin filaments through ATP hydrolysis. Contraction is triggered by an action potential causing calcium release and the binding of myosin heads to actin, pulling the Z-lines inward.
The document discusses the four primary tissue types found in the human body: bone, blood, muscle, and nervous tissue. It provides details on the function, characteristics, and location of each type of tissue. It also covers the body's response to injury, how tissues change throughout life, and factors that affect tissue health like age, nutrition, and circulation.
This document discusses the four basic types of tissues in the body - epithelial, connective, muscle, and neural tissue. It describes the structure and functions of each tissue type and some key subtypes. The document also covers how tissues are affected by injury, aging, and cancer development over time. Tissues regenerate through inflammation and healing processes, though regeneration abilities decline with age. Cancer rates also increase as people age due to genetic and environmental factors.
There are four main types of tissues in the human body: connective tissue, epithelial tissue, muscle tissue, and nervous tissue. Connective tissue protects, supports, and binds other tissues. It includes bone, cartilage, fat, and blood. Epithelial tissue forms linings and coverings and produces secretions. It includes skin and lung linings. Muscle tissue contracts to enable movement and includes skeletal, cardiac, and smooth muscle. Nervous tissue conducts electrical signals to carry information throughout the brain, spinal cord, nerves, and sensory organs.
Connective tissue connects and supports other tissues in the body. It has several functions including mechanical support, transport of nutrients and waste, energy storage, and defense. Connective tissue is composed of collagen, elastic, and reticular fibers. It can be classified as loose connective tissue including areolar and adipose tissue, dense connective tissue including regular and irregular tissue, cartilage including hyaline, fibro, and elastic cartilage, bone tissue, and liquid connective tissue including blood and lymph. Loose connective tissue forms a network and fills spaces between organs, dense connective tissue has densely packed fibers, and cartilage and bone provide structure and support.
This document summarizes key concepts about animal tissues and organ systems. It discusses the four main tissue types - epithelial, connective, muscle and nervous tissue - and how they are organized into organs and organ systems. Specific organ systems covered include the integumentary, skeletal, circulatory and respiratory systems. Skin is presented as an example organ system consisting of epithelial and connective tissues. The structure and function of skin and its role in protection, temperature regulation and sensation are described. The document concludes by noting potential medical applications of skin, such as growing skin substitutes or harvesting stem cells.
Tissue is a group of cells that work together to perform a specific function. There are four main types of tissues: epithelial, connective, muscle, and nervous tissue. Connective tissue provides structural support and connects other tissues throughout the body. It is made of cells, fibers, and extracellular matrix embedded in fluid. Connective tissue includes tendons, ligaments, adipose tissue, and blood. It has many important functions like connecting and protecting organs, storing energy, and providing a structural framework.
The document discusses the four main types of tissues in the body: epithelial, nervous, muscular, and connective tissue. It provides examples of different epithelial tissues like stratified cuboidal and simple squamous epithelium. It describes the functions of nervous tissue in conducting impulses and bringing about responses to stimuli. The document outlines the three types of muscular tissue: skeletal, smooth, and cardiac. Finally, it lists several types of connective tissues, including loose connective tissue, adipose tissue, reticular tissue, dense regular fibrosis, bone, hyaline cartilage, and fibrocartilage.
This document summarizes different types of tissues in the body. It discusses four major tissue groups: epithelial, connective, muscular and nervous tissue. Epithelial tissue forms protective layers and linings. Connective tissue includes adipose, cartilage and bone tissue that connect and support other tissues. There are three types of muscle tissue - smooth, skeletal and cardiac - that allow movement. The document provides detailed descriptions of each tissue type including their structure, function and cellular composition.
This document summarizes the four main types of tissues in the human body: epithelial, connective, muscular, and nervous tissue. It describes the structure and function of each type of tissue and some examples. Epithelial tissues form protective barriers and allow for material exchange. Connective tissues include blood, lymph, bones, cartilage, and more, providing structure and transport functions. Muscular tissues allow for movement and include three main types. Nervous tissue forms the nervous system and is composed of neurons that transmit electrical signals.
Skeletal muscle is composed of fibers that contain myofibrils made up of actin and myosin filaments. The sliding of these filaments causes muscle contraction via the sarcomere, the basic contractile unit. There are three main types of muscle tissue - skeletal, cardiac, and smooth. Skeletal muscle is striated and voluntary, attaching to bones to enable movement. Cardiac muscle is exclusively found in the heart walls and has involuntary, rhythmic contractions. Smooth muscle lacks striations and has involuntary, sustained contractions that support functions like digestion.
This document provides information on the four basic tissue types - epithelial, connective, muscle and nervous tissue. It describes each tissue type in detail, including their characteristic roles and functions. For epithelial tissue, it discusses the different classifications including simple and stratified epithelium as well as glandular tissues. It also covers the key components and functions of connective, muscle and nervous tissues.
There are four main types of tissues in the animal body: epithelial, connective, muscular and nervous tissue. Epithelial tissue forms the covering and lining of structures throughout the body, including skin, blood vessels and organs. Connective tissue connects and supports other tissues and includes blood, bone, cartilage and fat. Muscular tissue contains elongated muscle cells that allow for movement. Nervous tissue is made up of neurons that transmit signals throughout the body and brain to control movement and functions.
There are four main types of tissues in the body: epithelial, connective, muscular, and nervous tissue. Muscular tissue is classified into three types - skeletal, cardiac, and smooth muscle - based on location and voluntary/involuntary control. Nervous tissue consists of neurons, which conduct nerve impulses, and neuroglial cells which nourish and support neurons. The main cell types of nervous tissue are neurons, astrocytes, microglia, oligodendrocytes and ependymal cells.
The document discusses cell and tissue types in the human body. It begins by outlining the hierarchical organization of biological structures from atoms to the biosphere. It then discusses how cellular differentiation through mitosis allows for the formation of complex multicellular organisms. The main animal tissue types are identified as epithelial, nervous, muscle, and connective tissues. Each tissue type is described in terms of its characteristic cell types and functions. Connective tissue is discussed in further detail regarding its main cell types, extracellular matrix components like collagen and elastic fibers, and examples of connective tissue diseases.
This document summarizes the histological features of musculoskeletal tissues, including bone, cartilage, skeletal muscle, tendons, ligaments, and peripheral nerves. It describes the main cell types found in bone (osteoblasts, osteocytes, osteoclasts) and their functions. It also discusses the microscopic structure of cortical and cancellous bone, cartilage, skeletal muscle, and peripheral nerves. Key components are highlighted, such as osteons in cortical bone, trabeculae in cancellous bone, the extracellular matrix of cartilage, and the sarcomere structure of muscle fibers.
There are four main types of tissues in the body: epithelial, connective, muscular, and nervous tissue. Muscular tissue is classified into three types - skeletal, cardiac, and smooth muscle - based on location and voluntary/involuntary control. Nervous tissue consists of neurons, which conduct nerve impulses, and neuroglial cells, which nourish and support neurons. The main cell types of nervous tissue are neurons, astrocytes, microglia, oligodendrocytes, and ependymal cells.
Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells. This may be abundant in some tissues and minimal in others.
This document discusses the four main types of tissues in the human body - epithelial, connective, muscular and nervous tissue.
It describes epithelial tissue as sheets of cells that cover surfaces and line organs. There are several types classified by cell shape and layer thickness. Connective tissue binds other tissues together and has fibers within a fluid or solid matrix. Examples include loose connective, adipose, blood and fibrous tissues. Muscle tissue contains contractile cells in skeletal, cardiac and smooth configurations. Nervous tissue is made up of neurons that transmit electrical signals through dendrites, cell bodies and axons.
ELEMENTARY TISSUE PPT & Types of tissuesMsSapnaSapna
In simple terms, tissue can be defined as a group of cells with similar shape and function are termed as tissues. They form a cellular organizational level, intermediate between the cells and organ system. Organs are then created by combining the functional groups of tissues.
This document summarizes the key types of epithelial tissues, nervous tissues, muscle tissues, connective tissues, and blood. It describes the structure and function of simple squamous, cuboidal, and columnar epithelia. It also discusses the three main types of neurons and the roles of neuroglia. The three types of muscle tissue - smooth, cardiac, and striated muscle - are outlined. Finally, it provides details on bones, cartilage, blood components like erythrocytes and leukocytes, and their functions in the body.
A tissue may be defined as an aggregate or collection of same type of cells performing the same general functions of the body. For example: Blood, bone, muscle etc.
The document discusses the four basic types of tissues in the human body: connective, muscle, nervous, and epithelial tissue. Connective tissue binds and supports other tissues. Muscle tissue produces movement through contraction. Nervous tissue is composed of neurons and neuroglia and regulates bodily functions. Epithelial tissue lines body surfaces and cavities and has functions like secretion, absorption and protection. The document provides details on the composition, function and examples of each tissue type.
Tissue level organisation by KH pharmacoding.pptxKavyPatel5
This document provides information about different types of tissues in the human body. It discusses four main types of tissues: epithelial, connective, muscular and nervous tissue.
For epithelial tissue, it describes the location and functions of simple and compound epithelial cells. It also explains goblet cells and glandular epithelial cells.
Connective tissue is divided into connective tissue proper, supportive connective tissue and fluid connective tissue. The main components and locations of different connective tissues like areolar tissue, adipose tissue, cartilage and bones are outlined.
The three types of muscular tissue - skeletal, smooth and cardiac muscle - are defined along with their characteristics.
Nervous tissue contains neurons and neuroglia
Tissue is composed of four main types: epithelial, connective, muscle, and nervous. Epithelial tissue forms protective barriers and lines body surfaces. Connective tissue connects and supports other tissues. Muscle tissue contracts to cause movement. Nervous tissue allows internal communication through neurons and glial cells in the brain, spinal cord, and nerves. Each tissue has distinct cell types and locations that allow the body's organs and systems to function.
Cell-Tissue-Organ-System describes the hierarchical organization of the human body. Cells specialize through cellular division to form tissues like muscle, nerve, and epithelial tissues. Tissues combine to form organs like the heart, brain, and lungs. Systems are sets of organs that work together to carry out key functions, such as the digestive system, circulatory system, and nervous system. This organization allows the human body to carry out vital activities through specialized and interconnected cells, tissues, organs, and organ systems.
1. The document discusses the structural organisation in animals, focusing on tissues and their classification. It describes four main tissue types - epithelial, connective, muscular and neural tissues.
2. Epithelial tissues are classified as simple or compound based on their cell layers. Connective tissues include areolar, adipose, cartilage, bone and blood. Muscular tissues include skeletal, smooth and cardiac muscle.
3. The document also provides examples of tissues like squamous epithelium found in blood vessels and areolar connective tissue found beneath the skin. It summarizes the key features and functions of different tissues in the body.
This document summarizes the four main types of animal tissues - epithelial, connective, muscular, and nervous tissues. It describes the classification and characteristics of each tissue type. Connective tissues are further broken down into categories like loose connective tissue, adipose tissue, blood, fibrous tissue, cartilage, and bone. The document also provides detailed descriptions of tissues like areolar connective tissue, cardiac muscle, skeletal muscle, neurons and neuroglia cells. In summary, it comprehensively outlines the structure and functions of the primary tissue types found in animal bodies.
definition of nervous system,distribution of nervous system in body,classification,Neuron structure and functions ,anatomy of glial cells and Types ,functions of Glial cells
The document discusses the structural organization of animal tissues. It describes the four main types of tissues - epithelial, connective, muscular and neural. Epithelial tissue lines body surfaces and cavities. Connective tissue provides structure and binds other tissues. Muscle tissue functions to contract, while neural tissue controls the body's responses. The document then provides examples like earthworm anatomy to illustrate these tissue types and their functions in animal bodies.
This document summarizes and compares the main types of plant and animal tissues. It outlines that plant tissues are divided into meristematic and permanent tissues, with meristematic tissue providing growth and permanent tissue conducting materials. Animal tissues include four primary types - epithelial, connective, muscular and nervous tissues. Each tissue type has subcategories and performs distinct functions like transport, connection or movement.
This document discusses the four main types of animal tissues: connective tissue, muscle tissue, nervous tissue, and epithelial tissue. Connective tissue includes cells scattered throughout an extracellular matrix and provides structure and support. Muscle tissue contains three categories of muscle cells that produce movement. Nervous tissue forms the central and peripheral nervous systems. Epithelial tissue covers organ surfaces and forms protective barriers.
This document discusses connective tissue and nervous tissue. It describes the different types of connective tissues, including areolar, adipose, bone, and cartilage tissue. Areolar tissue fills gaps and aids repair. Adipose tissue provides insulation and cushioning. Bone forms the skeletal system and cartilage is present at bone joints. The document then discusses nervous tissue, which consists of neurons and glial cells. Nervous tissue forms the central and peripheral nervous systems and is responsible for monitoring and regulating bodily functions through the transmission of nerve impulses. Key parts of neurons include the cell body, dendrites, axon and synapses.
There are four primary types of tissues in the body: epithelial, connective, muscular, and nervous. Epithelial tissue forms sheets that cover surfaces and line cavities. There are two main categories of epithelial tissue: simple epithelial tissue which is one cell thick, and stratified epithelial tissue with multiple cell layers. Connective tissue is found throughout the body and binds other tissues together. It includes connective tissue proper, dense connective tissue, cartilage, and bone. Muscular tissue is made of muscle cells and is divided into skeletal, smooth, and cardiac muscle. Nervous tissue includes neurons and is responsible for controlling and regulating the body.
Skin Pigmentation disorders and its management .pptxJagruti Marathe
Some of the most common are pigmented birthmarks, macular stains, hemangiomas, port wine stains, while disorders include albinism, melasma, vitiligo and pigmentation loss due to skin damage. Birthmarks and other skin pigmentation (coloration) disorders affect many people.
Skin pigmentation disorders are conditions that affect the color of the skin. Some common types of skin pigmentation disorders include:
Pigmented birthmarks
Macular stains
Hemangiomas
Port wine stains
Albinism
Melasma
Vitiligo
Skin pigment loss due to sun damage
Other factors that can affect skin pigmentation include: Pregnancy, Addison's disease, Sun exposure.
Some treatments for skin pigmentation disorders include:
Over-the-counter or prescription creams
Topical pimecrolimus or tacrolimus
Light therapy
Melanocytes in the basal epidermis control skin pigmentation through synthesis of melanin, a complex process thought to be primarily regulated by alpha-melanocyte stimulating hormone (αMSH)
Light therapy exposes your skin to a type of ultraviolet (UV) light that can restore your natural skin color. If a large area of your body needs treatment, your dermatologist may prescribe a type of light therapy called phototherapy. During phototherapy, you expose your skin to UV light for a specific amount of time.
Dermatological testing as perBISpecification.pptxJagruti Marathe
Bureau of Indian Standards (BIS) is the National Standard Body of India.
BIS is responsible for the harmonious development of the activities of standardization, marking and quality certification of goods and for matters connected therewith or incidental thereto.
BIS through its core activities of standardization and conformity assessment, has been benefiting the national economy by providing safe, reliable and quality goods; minimizing health hazards to consumers; protecting the environment, promoting exports and imports substitute; controlling over proliferation of varieties etc.
Dermatological testing assesses a product's potential to cause skin irritation or allergic reactions. A product is considered dermatologically tested if a qualified dermatologist supervises the testing and verifies the results. Some dermatological tests include: Repeat-insult patch testing: Stability testing: Cosmetics toxicology test:
Cosmetic pharmacology refers to the use of drugs to improve cognition in normal healthy individuals, for the purpose of enhancement rather than treatment of a formal pathology.
Some case reports with the antidepressant Prozac indicated that patients seemed "better than well," and authors hypothesized that this effect might be observed in individuals not afflicted with psychiatric disorders.
Following these case reports much controversy arose over the veracity and ethics of the cosmetic use of these antidepressants.
Opponents of cosmetic pharmacology state that such drug use is unethical and dangerous, and that the concept of cosmetic pharmacology is a manifestation of naive consumerism resulting from pharmaceutical marketing campaigns.
Proponents state that drugs used to treat many pathologies are just as dangerous, it is an individual's (rather than government's, or physician's) decision whether to use a drug for cosmetic purposes, and there are few if any legitimate ethical qualms with cosmetic pharmacology.
The urinary system consists of the kidneys, ureters, bladder, and urethra. The kidneys filter waste from the blood to produce urine. Each kidney contains around 1 million nephrons, the functional units of the kidney. Nephrons filter blood in the glomerulus and remove waste while reabsorbing useful substances. Hormones regulate urine concentration and volume. Urine is stored in the bladder and expelled through the urethra in a process called micturition.
A closed system of the heart and blood vessels
The heart pumps blood
Blood vessels allow blood to circulate to all parts of the body
The function of the cardiovascular system is to deliver oxygen and nutrients and to remove carbon dioxide and other waste products
The heart contributes to homeostasis by pumping blood through blood vessels to the tissues of the body to deliver oxygen and nutrients and remove wastes.
Blood to reach body cells and exchange materials with them, it must be pumped continuously by the heart through the body’s blood vessels.
The heart beats about 100,000 times every day, which adds up to about 35 million beats in a year, and approximately 2.5 billion times in an average lifetime.
The left side of the heart pumps blood through an estimated 100,000 km (60,000 mi) of blood vessels, which is equivalent to traveling around the earth’s equator about three times.
The right side of the heart pumps blood through the lungs, enabling blood to pick up oxygen and unload carbon dioxide.
The nervous system is divided into the central nervous system (CNS) and peripheral nervous system (PNS). The CNS consists of the brain and spinal cord and processes sensory input and coordinates motor output. The PNS consists of nerves that connect the CNS to the rest of the body and allows for sensation and muscle/gland control. Neurons are the basic functional units that transmit electrochemical signals and communicate via synapses. The nervous system maintains homeostasis, provides sensation, higher functions, and activates muscles and glands through a complex interplay between its various parts.
Hair grows in cycles of anagen, catagen, and telogen phases. Hair color is created by melanin and turns gray with age. There are four types of integumentary glands - sudoriferous glands produce sweat, sebaceous glands produce oil, ceruminous glands produce earwax, and mammary glands produce milk. Sweat glands help regulate body temperature, sebaceous glands inhibit bacteria and keep skin moist, ceruminous glands lubricate and protect the ear, and mammary glands nourish infants with milk.
Definition :
Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells.
Histology (his′-TOL-oˉ-jē; histo- = tissue; logy = study of) is the science that deals with the study of tissues.
A pathologist (pa-THOL-oˉ - jist; patho- = disease) is a physician who examines cells and tissues to help other physicians make accurate diagnoses.
1. Epithelial tissue covers body surfaces and lines hollow organs, body cavities, and ducts; it also forms glands. This tissue allows the body to interact with both its internal and external environments.
2. Connective tissue protects and supports the body and its organs. Various types of connective tissues bind organs together, store energy reserves as fat, and help provide the body with immunity to disease-causing organisms.
3. Muscular tissue is composed of cells specialized for contraction and generation of force. In the process, muscular tissue generates heat that warms the body.
4. Nervous tissue detects changes in a variety of conditions inside and outside the body and responds by generating electrical signals called nerve action potentials (nerve impulses) that activate muscular contractions and glandular secretions.
In biology, cell signaling or cell communication is the ability of a cell to receive, process, and transmit signals with its environment and with itself.
ell signaling is a fundamental property of all cellular life in prokaryotes and eukaryotes .
Signals that originate from outside a cell (or extracellular signals) can be physical agents like mechanical pressure, voltage, temperature, light, or chemical signals (e.g., small molecules, peptides, or gas).Signaling molecules can be synthesized from various biosynthetic pathways and released through passive or active transports, or even from cell damage.
Receptors play a key role in cell signaling as they are able to detect chemical signals or physical stimuli.
Receptors are generally proteins located on the cell surface or within the interior of the cell such as the cytoplasm, organelles, and nucleus.
Cell surface receptors usually bind with extracellular signals (or ligands), which causes a conformational change in the receptor that leads it to initiate enzymic activity, or to open or close ion channel activity. Some receptors do not contain enzymatic or channel-like domains but are instead linked to enzymes or transporters.
Other receptors like nuclear receptors have a different mechanism such as changing their DNA binding proper properties and cellular localization to the nucleus.
Structure and functions of cell, transport across cell membrane, cell
division, cell junctions. General principles of cell communication,
the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body
The basic tenets of the cell theory are as follows:
All living things are made up of one or more cells.
The cell is the structural and functional unit of all living things.
Cells come from pre-existing cells through the process of division.
All cells are the same in regard to chemical composition.
Cells also communicate with each other. Whether in plants, humans, or animals, they connect to create a solid, well formed organism. In humans, cells build tissues, tissues form organs, and organs work together to keep the body alive.
Experts estimate that there are around 200Trusted Source cell types in the human body.
Allergies are the result of your immune system's response to a substance. Immune responses can be mild, from coughing and a runny nose, to a life-threatening reaction know as anaphylaxis.
A person becomes allergic when their body develops antigens against a substance
The purpose of the immune system is to defend itself and keep microorganisms, such as certain bacteria, viruses, and fungi, out of the body, and to destroy any infectious microorganisms that do invade the body.
The immune system is made up of a complex and vital network of cells and organs that protect the body from infection.
The organs involved with the immune system are called the lymphoid organs. They affect growth, development, and the release of lymphocytes (a type of white blood cell).
The blood vessels and lymphatic vessels are important parts of the lymphoid organs.
They carry the lymphocytes to and from different areas in the body.
Each lymphoid organ plays a role in the production and activation of lymphocytes.
1. Toxicology, Scope of Pharmacology in Cosmetic Tech .pptxJagruti Marathe
The document provides an introduction to pharmacology and toxicology. It defines key terms like:
- Pharmacology is the study of drugs and their effects and mechanisms of action in living systems.
- Toxicology is the study of adverse health effects of chemicals.
- Pharmacokinetics refers to how the body affects a drug while pharmacodynamics is what the drug does to the body.
- Toxicants can enter the body through various routes and affect organs in both reversible and irreversible ways. Treatment involves removing unabsorbed toxins, administering antidotes, and promoting excretion of absorbed toxins.
Alopecia areata is a disease that happens when the immune system attacks hair follicles and causes hair loss. Hair follicles are the structures in skin that form hair. While hair can be lost from any part of the body, alopecia areata usually affects the head and face
The document discusses hair disorders and provides details about hair structure and the hair growth cycle. Some key points:
- Hair is found in mammals and grows from follicles, providing protection and regulating temperature. It grows about half an inch per month.
- The hair growth cycle consists of anagen (growth phase), catagen (transition phase), and telogen (resting phase). Hair disorders can disrupt this cycle.
- Common hair disorders include dandruff, seborrheic dermatitis, alopecia (hair loss), hirsutism (excess hair growth), and hair shaft abnormalities. Treatment depends on the specific disorder.
The earliest indications of the biological nature of viruses came from studies in 1892 by the Russian scientist Dmitry I. Ivanovsky and in 1898 by the Dutch scientist Martinus W. Beijerinck.
Beijerinck first surmised that the virus under study was a new kind of infectious agent, which he designated contagium vivum
fluidum, meaning that it was a live, reproducing organism that differed from other organisms.
Both of these investigators found that a disease of tobacco plants could be transmitted by an agent, later called tobacco mosaic virus, passing through a minute filter that would not allow the passage of bacteria.
Allergies are the result of your immune system's response to a substance. Immune responses can be mild, from coughing and a runny nose, to a life-threatening reaction know as anaphylaxis.
A person becomes allergic when their body develops antigens against a substance.
The purpose of the immune system is to defend itself and keep microorganisms, such as certain bacteria, viruses, and fungi, out of the body, and to destroy any infectious microorganisms that do invade the body.
The immune system is made up of a complex and vital network of cells and organs that protect the body from infection.
The organs involved with the immune system are called the lymphoid organs. They affect growth, development, and the release of lymphocytes (a type of white blood cell).
The blood vessels and lymphatic vessels are important parts of the lymphoid organs.
They carry the lymphocytes to and from different areas in the body.
Each lymphoid organ plays a role in the production and activation of lymphocytes.
Lymphoid organs include:
Adenoids (two glands located at the back of the nasal passages)
Appendix (a small tube that is connected to the large intestine)
Blood vessels (the arteries, veins, and capillaries through which blood flows)
Bone marrow (the soft, fatty tissue found in bone cavities)
Lymph nodes (small organs shaped like beans, which are located throughout the body and connect via the lymphatic vessels)
Lymphatic vessels (a network of channels throughout the body that carries lymphocytes to the lymphoid organs and bloodstream)
Peyer's patches (lymphoid tissue in the small intestine)
Spleen (a fist-sized organ located in the abdominal cavity)
Thymus (two lobes that join in front of the trachea behind the breast bone)
Tonsils (two oval masses in the back of the throat)
Lymphoid organs include:
Adenoids (two glands located at the back of the nasal passages)
Appendix (a small tube that is connected to the large intestine)
Blood vessels (the arteries, veins, and capillaries through which blood flows)
Bone marrow (the soft, fatty tissue found in bone cavities)
Lymph nodes (small organs shaped like beans, which are located throughout the body and connect via the lymphatic vessels)
Lymphatic vessels (a network of channels throughout the body that carries lymphocytes to the lymphoid organs and bloodstream)
Peyer's patches (lymphoid tissue in the small intestine)
Spleen (a fist-sized organ located in the abdominal cavity)
Thymus (two lobes that join in front of the trachea behind the breast bone)
Tonsils (two oval masses in the back of the throat)
Anaphylactic shock, also called anaphylaxis, is a severe, life-threatening reaction to certain allergens.
Body tissues may swell, including tissues in the throat.
Anaphylactic shock is also characterized by a sudden drop in blood pressure.
The following are the most common symptoms of anaphylactic shock.
However, each person may experience symptoms differently.
Bacteria are small single-celled organisms. Bacteria are found almost everywhere on Earth and are vital to the planet's ecosystems. Some species can live under extreme conditions of temperature and pressure. The human body is full of bacteria, and in fact is estimated to contain more bacterial cells than human cells.
Microbiology is the study of all living organisms that are too small to be visible with the naked eye. This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'.
How to Manage Your Lost Opportunities in Odoo 17 CRMCeline George
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
Walmart Business+ and Spark Good for Nonprofits.pdfTechSoup
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPRAHUL
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...PECB
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
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Slideshare: http://www.slideshare.net/PECBCERTIFICATION
How to Make a Field Mandatory in Odoo 17Celine George
In Odoo, making a field required can be done through both Python code and XML views. When you set the required attribute to True in Python code, it makes the field required across all views where it's used. Conversely, when you set the required attribute in XML views, it makes the field required only in the context of that particular view.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...Diana Rendina
Librarians are leading the way in creating future-ready citizens – now we need to update our spaces to match. In this session, attendees will get inspiration for transforming their library spaces. You’ll learn how to survey students and patrons, create a focus group, and use design thinking to brainstorm ideas for your space. We’ll discuss budget friendly ways to change your space as well as how to find funding. No matter where you’re at, you’ll find ideas for reimagining your space in this session.
2. TISSUES
FRENCH WORD “TO WEAVE”
Definition :
Tissue is a group of cells that have
similar structure and that function
together as a unit. A nonliving material,
called the intercellular matrix, fills the
spaces between the cells.
4. Epithelial tissue:
Covering on all internal and
external surface of your body,
lines body cavities all hollow
organ and is the major tissue
in glands
4
5. Epithelialtissue:
5
Epithelial tissue has a variety of the functions depending on where its located in body, including ,protection, secretion
and absorption.
Epithelial tissue is made up of epithelial cells.
The cells can be different in the shape and size and be arranged in a single and multiple layers depending on where
they are in body and function they have.
12. Connectivetissue:
12
The common cell type in connective tissue include: fibroblast, mast cell , plasma cells , macrophages, adipocytes and
leukocytes.
Fibro blast are the most common cell type of connective tissue . They produce both fibres and amorphous ground
substance.
Specialize connective tissues include a number of different tissues with specialized cells and unique ground substance.
Some of these are solid and strong, while others are fluid and flexible. Example include adipose, cartilage, bone, blood
and lymph.
14. Tissue Purpose Components Location
Collagen
fibres
Bind bones and
other tissues to
each other
Alpha
polypeptide
chains
Tendon ,ligament ,
skin, Cornea,
cartilage , bone,
blood vessels, gut
and intervertebral
Elastic
fibres
Allow organs
like arteries and
lungs to recoil
Elastic microfibril
and elastin
Extracellular matrix
Reticular
fibres
Form a
scaffolding for
other cells
Type 3 collage Liver, bone marrow,
and lymphatic
organs
15. 15
Functions:
• Connects tissues to one another—Tendons and
ligaments
Binding structure
• Bones
Provide support and movement
• Bones , cells of the immune system
Protection
• Blood
Transportation
• Fat
Storage
• Fat
Insulation
17. • Muscle tissue is composed of cell that
have the special ability to shorten or
contraction in order to produce
movement of the body parts.
• The tissue is highly cellular and is well
supplied with blood vessels.
• The cells are long and slender so they are
sometimes called muscle fibres, and these
are usually arranged in bundles or layers
that are surrounded by connective tissue.
• Actin and myosin are contractile protein in
muscle tissue.
20. • Skeletal muscles attach to and move bones
by contracting and relaxing in response to
voluntary messages from the nervous
system.
• Skeletal muscle tissue is composed of long
cells called muscle fibers that have a striated
appearance.
• Muscle fibers are organized into bundles
supplied by blood vessels and innervated by
motor neurons.
21. • Smooth muscle is found in the walls of
hollow organs throughout the body.
• Smooth muscle contractions are involuntary
movements triggered by impulses that travel
through the autonomic nervous system to
the smooth muscle tissue.
• The arrangement of cells within smooth
muscle tissue allows for contraction and
relaxation with great elasticity.
22. • The smooth muscle in the walls of organs
like the urinary bladder and the uterus allow
those organs to expand and relax as needed.
• The smooth muscle of the alimentary canal
(the digestive tract) facilitates the peristaltic
waves that move swallowed food and
nutrients.
• In the eye smooth muscle changes the shape
of the lens to bring objects into focus.
• Artery walls include smooth muscle that
relaxes and contracts to move blood through
the body
23. • The heart wall is composed of three layers. The middle layer,
the myocardium, is responsible for the heart’s pumping
action.
• Cardiac muscle, found only in the myocardium, contracts in
response to signals from the cardiac conduction system to
make the heart beat.
• Cardiac muscle is made from cells called cardiocytes. Like
skeletal muscle cells cardiocytes have a striated appearance,
but their overall structure is shorter and thicker.
• Cardiocytes are branched, allowing them to connect with
several other cardiocytes, forming a network that facilitates
coordinated contraction.
24. 24
Functions:
• Skeletal muscles pull on the bones causing movements at the joints.
Movement
• Muscles of the body wall support the internal organs
Provide support
• Skeletal muscles, particularly of the body wall, cushion the body's
internal organs (abdominal cavity) from force applied to the exterior of
the body.
Protection
• Heat is a waste product of muscle metabolism, which helps maintain
an internal body temperature of 98.6 F.
Heat generation
• Cardiac muscles aid pumping action of the heart by aiding blood
circulation.
Blood circulation
25. NEVERSTISSUE
25
Nervous tissue is the main component of the
nervous system, which includes the brain, spinal
cord, and nerves.
This Photo by Unknown Author is licensed under CC BY-SA
27. •Nervous tissue is one of four major classes of
tissues and makes up the central nervous system
and the peripheral nervous system.
•Integration and communication are the two major
functions of nervous tissue.
•Nervous tissue contains two categories of cells —
neurons and neuroglia.
•Neurons are highly specialized nerve cells that
generate and conduct nerve impulses.
•Neuroglia are supporting cells that provide physical
sport, remove debris, and provide electrical
insulation.
28. Nervous Tissue
The nervous system is responsible for the control of the
body and the communication among its parts. Nervous
tissue contains two categories of cells—neurons and
neuroglia.
Neurons
Neurons are highly specialized nerve cells that generate and
conduct nerve impulses. A typical neuron consists of
dendrites, the cell body, and an axon.
29. Dendrites
Dendrites are responsible for responding to stimuli; they
receive incoming signals towards the cell body. The
axons are responsible for transmitting impulses over
long distances from cell body. The cell body is like a
factory for the neuron. It produces all the proteins and
contains specialized organelles such as nucleus, granules
and Nissl bodies.
Dendrite
The axon is surrounded by a whitish, fatty layer called
the myelin sheath. Outside the myelin sheath there is a
cellular layer called the neurilemma.
30. Schwann Cells
In the peripheral nervous system, Schwann cells are
neuroglia cells that support neuronal function by
increasing the speed of impulse propagation. The
Schwann cells are underlain by the medullary
sheath. The medullary sheath is interrupted at
intervals by the nodes of Ranvier.
31. Types of Nervous Tissue
The nervous system consists of nervous tissue, which is
composed of two principal types of cells called neuron and
neuroglia.
•Nervous tissue is composed of neurons and supporting cells
called neuroglia, or ” glial cells.”
•There are six types of neuroglia. Four are found in the central
nervous system, while two are found in the peripheral nervous
system.
•The four types of neuroglia found in the central nervous system
are astrocytes, microglial cells, ependymal cells, and
oligodendrocytes.
32. •The two types of neuroglia found in the peripheral nervous
system are satellite cells and Schwann cells.
•Neurons are the other the other type of cell that comprise
nervous tissue.
•Neurons have cell bodies, dendrites, and axons.
33. Astrocytes
Astrocytes are shaped like a star and are the most abundant glial
cell in the CNS. They have many radiating processes which help
in clinging to the neurons and capillaries. They support and
brace the neurons and anchor them to the nutrient supply lines.
They also help in the guiding the migration of young neurons.
Astrocytes control the chemical environment around the
neurons.
Microglial Cells
Microglial cells are small and ovoid un shape with thorny
processes. They are found in the CNS. When invading
microorganism or dead neurons are present, the microglial cells
can transform into a phagocytic macrophage and help in
cleaning the neuronal debris.
34. 34
Ependymal Cells
Ependymal cells are ciliated and line the central cavities of the brain
and spinal cord where they form a fairly permeable barrier between
the cerebrospinal fluid that fills these cavities and the tissue cells of
the CNS.
Oligodendrocytes
Oligodendrocytes line up along the nerves and produce an
insulating cover called myelin sheath. They are found in the CNS.
Satellite Cells
Satellite cells surround neuron cell bodies in the peripheral nervous
system (PNS). They are analogous to the astrocytes in the CNS.
Schwann Cells
Schwann cells surround all nerve fibers in the peripheral nervous
system and form myelin sheaths around the nerve fibers. They are
found in the PNS. Their function is similar to oligodendrocytes.
This Photo by Unknown Author is licensed under CC BY-SA
35. 35
Neurons
Neurons consist of cell body and one or more slender processes.
The neuronal cell body consists of a nucleus and rough endoplasmic
reticulum or Nissl Bodies. The cell body is the major biosynthetic
center of a neuron and contains the usual organelles for the
synthesis of proteins and other chemicals. Arm like processes
extend from the cell body to all neurons.
The two types of neuron processes are called dendrites and axons.
Dendrites are motor neurons that are short and have a large surface
area for receiving signals from other neurons. Dendrites convey
incoming messages towards the cell body and are therefore called
the receptive input region. This Photo by Unknown Author is licensed under CC BY-SA
36. 36
The axon arises from the cone shaped portion of the cell body
called the axon hillock. Functionally, the axon is the conducting
region of the neuron and is responsible for generating and
transmitting impulses typically away from the cell body. A single
axon routes the nerve impulse from the cell body to another neuron
or an effector organ. The axon can have many terminal branches, so
each time the nerve fires, it can stimulate more than one cell.