This document discusses the different types of tissues in the human body. It begins by defining tissue and histology. Tissue is then classified into four main groups: epithelial, connective, muscle, and nervous tissue. Each type of tissue is further described in detail, including their structure and function. Epithelial tissue is divided into covering/lining tissue and glandular tissue. Connective tissue consists of cells and extracellular matrix and is classified into loose, dense, cartilage, bone, blood and lymph tissues. Muscle tissue includes skeletal, smooth and cardiac muscles. Nervous tissue forms the nervous system and is composed of neurons and glial cells. The document concludes by describing endocrine and exocrine glands.
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.
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.
In this slide we will discuss about Animal Tissue. We will discuss about its types like Skeletal tissue, Muscles tissue,Connective tissue and Epithelial tissue.
5. Tissues - BSc Nursing 1st Semester - by M. Thirumurugan.pptxthiru murugan
Tissues: the group of cells are called tissue. A tissue is an assemble of similar cells that together carry out a specific function. The group of tissues are joined and form organ.
Types or classification:
4 basic tissues:
Epithelial tissue
Connective tissue
Muscular tissue
Nervous tissue
I. EPITHELIAL TISSUE:
Epithelial tissue is made up of epithelial cells.
The cells can be different shapes and can be arranged in a single layer or multiple layers depending on where they are located in body and what kind of functions they have.
All substances that enter or leave an organ must cross the epithelial tissue first.
The epithelium is a type of body tissue that forms the covering on all internal and external surfaces of body, lines body cavities and hollow organs and is the major tissue in glands.
Epithelial tissue has a variety of functions depending on where it’s located in body, including protection, secretion and absorption.
Types of epithelial tissue:
Based on how the cells are arranged:
Simple epithelium
Stratified epithelium
Pseudostratified epithelium
1.simple epithelium: A simple epithelium means that there’s only one layer of cells.
Simple squamous epithelium: This type of epithelium typically lines blood vessels and body cavities and regulates the passage of substances into the underlying tissue.
Simple cuboidal epithelium: This type of epithelium is typically found in glandular (secreting) tissue and kidney tubules.
Simple columnar epithelium: This type of epithelium is often specialized for absorption and usually has apical cilia or microvilli. These cells line in stomach and intestines.
2.stratified epithelium: A stratified epithelium is made up of more than one layer of cells.
Stratified squamous epithelium: This type of epithelium usually has protective functions, including protection against microorganisms from invading underlying tissue and/or protection against water loss. The outer layer of skin (the epidermis) is made of stratified squamous epithelial cells.
Stratified cuboidal epithelium: This type of epithelium is found in the excretory ducts of salivary and sweat glands.
Stratified columnar epithelium: This type of epithelium is not as common and is seen in the mucous membrane (conjunctiva) lining in eyelids, where it’s both protective and mucus-secreting.
3. Pseudostratified:
These are simple columnar epithelial cells whose nuclei appear at different heights, giving the misleading (hence pseudo) impression that the epithelium is stratified when the cells are viewed in cross section.
Pseudostratified epithelium can also possess fine hair-like extensions of their apical (luminal) membrane called cilia.
In this case, the epithelium is described as ciliated pseudostratified epithelium. Ciliated epithelium is found in the airways (nose, bronchi), but is also found in the uterus and fallopian tubes of females, where the cilia propel the ovum to the uterus.
Epithelial cells based on specialized functions
Transitional epith
In this slide we will discuss about Animal Tissue. We will discuss about its types like Skeletal tissue, Muscles tissue,Connective tissue and Epithelial tissue.
5. Tissues - BSc Nursing 1st Semester - by M. Thirumurugan.pptxthiru murugan
Tissues: the group of cells are called tissue. A tissue is an assemble of similar cells that together carry out a specific function. The group of tissues are joined and form organ.
Types or classification:
4 basic tissues:
Epithelial tissue
Connective tissue
Muscular tissue
Nervous tissue
I. EPITHELIAL TISSUE:
Epithelial tissue is made up of epithelial cells.
The cells can be different shapes and can be arranged in a single layer or multiple layers depending on where they are located in body and what kind of functions they have.
All substances that enter or leave an organ must cross the epithelial tissue first.
The epithelium is a type of body tissue that forms the covering on all internal and external surfaces of body, lines body cavities and hollow organs and is the major tissue in glands.
Epithelial tissue has a variety of functions depending on where it’s located in body, including protection, secretion and absorption.
Types of epithelial tissue:
Based on how the cells are arranged:
Simple epithelium
Stratified epithelium
Pseudostratified epithelium
1.simple epithelium: A simple epithelium means that there’s only one layer of cells.
Simple squamous epithelium: This type of epithelium typically lines blood vessels and body cavities and regulates the passage of substances into the underlying tissue.
Simple cuboidal epithelium: This type of epithelium is typically found in glandular (secreting) tissue and kidney tubules.
Simple columnar epithelium: This type of epithelium is often specialized for absorption and usually has apical cilia or microvilli. These cells line in stomach and intestines.
2.stratified epithelium: A stratified epithelium is made up of more than one layer of cells.
Stratified squamous epithelium: This type of epithelium usually has protective functions, including protection against microorganisms from invading underlying tissue and/or protection against water loss. The outer layer of skin (the epidermis) is made of stratified squamous epithelial cells.
Stratified cuboidal epithelium: This type of epithelium is found in the excretory ducts of salivary and sweat glands.
Stratified columnar epithelium: This type of epithelium is not as common and is seen in the mucous membrane (conjunctiva) lining in eyelids, where it’s both protective and mucus-secreting.
3. Pseudostratified:
These are simple columnar epithelial cells whose nuclei appear at different heights, giving the misleading (hence pseudo) impression that the epithelium is stratified when the cells are viewed in cross section.
Pseudostratified epithelium can also possess fine hair-like extensions of their apical (luminal) membrane called cilia.
In this case, the epithelium is described as ciliated pseudostratified epithelium. Ciliated epithelium is found in the airways (nose, bronchi), but is also found in the uterus and fallopian tubes of females, where the cilia propel the ovum to the uterus.
Epithelial cells based on specialized functions
Transitional epith
here, you will find out a brief summary about the chapter tissues it is an very interesting chapter in this ppt all the topics have been discussed you can this ppt
Tissue Definition
Tissues are groups of cells that have a similar structure and act together to perform a specific function. The word tissue comes from a form of an old French verb meaning “to weave”. There are four different types of tissues in animals: connective, muscle, nervous, and epithelial. In plants, tissues are divided into three types: vascular, ground, and epidermal. Groups of tissues make up organs in the body such as the brain and heart.
Types of Animal Tissues
Connective
Connective tissue connects or separates groups of other tissues. It is found in between all the other tissues and organs in the body. Connective tissue is made up of cells and ground substance, which is a gel that surrounds cells. Most connective tissue, except for lymph and blood, also contains fibers, which are long, narrow proteins. Fibers can be collagenous, which bind bones to tissues; elastic, which allow organs like the lungs to move; or reticular, which provide physical support to cells. Connective tissue also allows oxygen to diffuse from blood vessels into cells.
About 1 in 10 people are have a disorder involving connective tissue. Some connective tissue disorders include sarcomas, Marfan syndrome, lupus, and scurvy, which is a Vitamin C deficiency that leads to fragile connective tissue.
Muscle
Muscle tissue comprises all the muscles in the body, and the specialized nature of the tissue is what allows muscles to contract. There are three types of muscle tissue: skeletal muscle, cardiac muscle, and smooth muscle. Skeletal muscle anchors tendons to bones and allows the body to move. Cardiac muscle is found in the heart and contracts to pump blood. Smooth muscle is found in the intestines, where it helps move food through the digestive tract, and it is also found in other organs like blood vessels, the uterus, and the bladder. Skeletal and cardiac muscles are striated; this means that they contain sarcomeres (a unit of muscle tissue) that are arranged in a uniform pattern. Smooth muscle does not have sarcomeres.
Duchenne muscular dystrophy is an example of a muscle tissue disorder. It is an inherited disorder that causes muscles to atrophy over time. The muscles shorten as they atrophy, which can cause scoliosis and immobile joints. Individuals with the disorder are usually male because the gene responsible for it is found on the X chromosome (of which males have only one).
Nervous
Nervous tissue is found in the brain, spinal cord, and peripheral nerves, which are all parts of the nervous system. It is made up of neurons, which are nerve cells, and neuroglia, which are cells that help nerve impulses travel. Nervous tissue is grouped into four types: gray matter and white matter in the brain, and nerves and ganglia in the peripheral nervous system. The main difference between gray and white matter is that axons of the neurons in gray matter are unmyelinated, while white matter is myelinated. Myelin is a white, fatty substance that insulates neurons and
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
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that is rapidly distributed in the body and brain. Ethanol alters many
neurochemical systems and has rewarding and addictive properties. It
is the oldest recreational drug and likely contributes to more morbidity,
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comorbidities, fetal alcohol spectrum disorders, genetic risk factors, and
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2. DEFINITION
• Tissue may refer to a group of biological
cells that perform a similar way to
function.
•Histology: It is a branch of medical
science which deal with the study of
tissue.
3. TISSUE
• Tissue is divided/Classified into four groups according to its structure and
function. The tissue is a cluster of cells, these cells work similarly, and their
nature and structure are the same. The tissue is the structure between cells
and organs. All types of body tissue are developed by three primary germ
layers (Ectoderm, Mesoderm, and Endoderm).
1. Epithelial Tissue
2. Connective Tissue
3. Muscle Tissue
4. Nervous tissue
5. TYPES OF TISSUES
• TYPES OF TISSUE
• 1. Epithelial Tissue –
• Epithelial tissue or epithelium is arranged as a continuous sheet. Less space
between two cells, this tissue is an avascular tissue, but nerve supply is present in
the epithelial tissue, and it’s divided into two types.
• (A) Covering & Lining Epithelial Tissue
• (B) Glandular Epithelial Tissue
• (A) Covering & Lining Epithelial Tissue –
• This type of tissue covering of skin & body cavities also lines the ducts. it again
divided into two types –
I. Simple Epithelium
II. Stratified Epithelium (Multiple Layers)
6. TYPES OF EPITHELIAL TISSUES
• I. Simple Epithelium –
• It is made up of single-layer cells, a type of simple epithelium
• Based on the shape of cells.
(a) Squamous Epithelium or pavement epithelium – Function –
Filtration, Diffusion, Osmosis.
• (b) Cuboidal epithelium – Function – Secretion, Absorption, Excretion.
• (c) Simple Columnar epithelium – Function – Secretion, Absorption.
(d) Ciliated Columnar – Function – Give movement to mucus & other
substance by ciliary action.
7. TYPES OF EPITHELIAL TISSUES
• II. Stratified Epithelium (Multiple Layers)-
• This layer protects the underlying structure from wearing and tearing.
(a) Stratified Squamous Epithelium – There are two types of stratified squamous
epithelium.
⇒ Keratinized stratified squamous epithelium. Lining dry surface of the body like –
Skin, Hair, Nail.
⇒ Non-Keratinized stratified squamous epithelium. Lining wet surface of the body
like – mouth, Anal canal, Vagina, Conjunctiva of eyes.
(b) Stratified Cuboidal Epithelium. Lining on Part of male urethra Ducts of the
sweat gland.
(c) Stratified Columnar Epithelium. Some line part of the urethra, Small area in the
anal mucus membrane.
(d) Transitional Epithelium. Line in urinary bladder, ureter & Part of the urethra.
8. TYPES OF EPITHELIAL TISSUES
• (B) Glandular Epithelial Tissue –
• This type of tissue produce secretion, situated in
glands made by goblet cells these cells specialize to
produce chemicals. glandular epithelial tissue is
multi-functional epithelial tissue.
11. CONNECTIVE TISSUES & TYPES
• 2. Connective Tissue –
This type of tissue is the largest amount in the body.
Function – Provide Support Strength and connect other
tissue, Protect & insulate internal organs,
Transportation, storage, the main site of immune
reaction.
It consists of two basic elements
I. Cell
II. Matrix
12. CONNECTIVE TISSUES & TYPES
• I. Cell –
• few connective tissue cells are
• Fibroblast cells
• Adipose cells or Fat cell or Adipocytes
• Mast cells
• Macrophages
• Plasma cells
• WBC
13. CONNECTIVE TISSUES & TYPES
• II. Matrix –
• Space Between the cells filed by matrix, matrix made by
fibrous and ground substance (The material between cells
and fiber called ground substance Ex. H2O, Hyaluronic
acids.
Fibers – There are three types of fiber found in the matrix
• Collagen fibers
• Elastic fibers
• Reticular Fibers
17. MUSCLE TISSUES & TYPES
• 3. Muscle Tissue –
• Muscle tissue is made up of elongated cells called muscle
fiber. In this tissue heaving contraction & relaxation
property then muscle tissue provides body movement. Types
of muscle tissue – Based on location, structure & function is
classified into three categories –
(a) Skeleton muscle tissue
(b) Smooth muscles
(c) Cardiac muscles tissue
20. NERVOUS TISSUE
• Nervous or the nerve tissue is the main tissue of our
nervous system. It monitors and regulates the
functions of the body. Nervous tissue consists of two
cells: nerve cells or neurons and glial cells, which
helps transmit nerve impulses and also provides
nutrients to neurons. Brain, Spinal Cord, and nerves
are composed of nervous tissue, they are specialized
for being stimulated to transmit stimulus from one
to another part of the body rapidly.
21. FUNCTION OF NERVOUS TISSUE
• Neurons generate and carry out nerve impulses. They
produce electrical signals that are transmitted across
distances, they do so by secreting chemical
neurotransmitters.
• Responds to stimuli
• Carries out communication and integration
• Provides electrical insulations to nerve cells and removes
debris
• Carries messages from other neurons to the cell body
23. GLANDS
• Glands are important organs located
throughout the body. They produce and release
substances that perform certain functions.
Though you have many glands throughout
your body, they fall into two types: endocrine
and exocrine.
26. ENDOCRINE GLANDS
• Endocrine glands are part of your endocrine system.
They make hormones and release them into your
bloodstream. These hormones control a number of
important functions in your body, such as:
• growth and development
• metabolism
• mood
• reproduction
27. ENDOCRINE GLANDS
• Your endocrine glands include:
• adrenal glands
• pituitary gland
• hypothalamus
• thyroid
• pineal gland
• There are also organs that contain endocrine tissue and act as glands. These include the:
• pancreas
• kidneys
• ovaries
• testes
29. EXOCRINE GLANDS
• Exocrine glands
• Exocrine glands produce other substances — not hormones
— that are released through ducts to the exterior of the
body, such as sweat, saliva, and tears.
• The substances released by your exocrine glands play
important roles in your body. They do things like help
regulate your body temperature, protect your skin and eyes,
and even help mothers feed babies by producing breast
milk.
30. EXOCRINE GLANDS
• Exocrine glands include:
• salivary
• sweat
• mammary
• sebaceous
• lacrimal
• Lymph nodes are often referred to as glands, but they’re not true glands. They’re
part of your immune system and help your body fight infection.