Cartilage is a connective tissue structure that is composed of a collagen and proteoglycan-rich matrix and a single cell type: the chondrocyte. Cartilage is unique among connective tissues in that it lacks blood vessels and nerves and receives its nutrition solely by diffusion
The lymphatic system consists of organs, ducts, and nodes. It transports a watery clear fluid called LYMPH distributes immune cells and other factors throughout the body.
Cartilage is a resilient and smooth elastic connective tissue, a rubber-like padding that covers and protects the ends of long bones at the joints, and is a structural component of the rib cage, the ear, the nose, the bronchial tubes, the intervertebral discs, and many other body components.
Histology
Junqueira’s Basic Histology Text and Atlas, 15th Ed
Connective tissue is the tissue that connects or separates, and supports all the other types of tissues in the body. Like all tissue types, it consists of cells surrounded by a compartment of fluid called the extracellular matrix (ECM). However connective tissue differs from other types in that its cells are loosely, rather than tightly, packed within the ECM.
What is a Gland?
An organised collection of secretory epithelial cells. Most glands are formed during development by proliferation of epithelial cells so that they project into the underlying connective tissue. Some glands retain their continuity with the surface via a duct and are known as EXOCRINE GLANDS. Other glands lose this direct continuity with the surface when their ducts degenerate during development. These glands are known as ENDOCRINE glands.
Cartilage is a connective tissue structure that is composed of a collagen and proteoglycan-rich matrix and a single cell type: the chondrocyte. Cartilage is unique among connective tissues in that it lacks blood vessels and nerves and receives its nutrition solely by diffusion
The lymphatic system consists of organs, ducts, and nodes. It transports a watery clear fluid called LYMPH distributes immune cells and other factors throughout the body.
Cartilage is a resilient and smooth elastic connective tissue, a rubber-like padding that covers and protects the ends of long bones at the joints, and is a structural component of the rib cage, the ear, the nose, the bronchial tubes, the intervertebral discs, and many other body components.
Histology
Junqueira’s Basic Histology Text and Atlas, 15th Ed
Connective tissue is the tissue that connects or separates, and supports all the other types of tissues in the body. Like all tissue types, it consists of cells surrounded by a compartment of fluid called the extracellular matrix (ECM). However connective tissue differs from other types in that its cells are loosely, rather than tightly, packed within the ECM.
What is a Gland?
An organised collection of secretory epithelial cells. Most glands are formed during development by proliferation of epithelial cells so that they project into the underlying connective tissue. Some glands retain their continuity with the surface via a duct and are known as EXOCRINE GLANDS. Other glands lose this direct continuity with the surface when their ducts degenerate during development. These glands are known as ENDOCRINE glands.
epithelium covers body surfaces, lines body cavities and constitute glands.so it is important to know about epithelium in detail to deal with tissue of different type and origin.
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.
Tissues definition and classification, function & location of of epithelium tissues, connective tissues, muscular tissues, nervous tissue etc.. it is usefull for the diploma in pharmacy students , bachelor of pharmacy students and doctor of pharmacy students
. Definition of Tissues Biological tissue is a collection of interconnected cells that perform a similar function within an organism. In other words, it is a group of cells working together mainly inside an organ.
3. Classification of Tissues Human body is composed of 4 basic types of tissue: •Epithelial tissue •Connective tissue •Muscular tissue •Nervous tissue
4. Origin of Tissue A fertilized egg divides to produce 3 primary germ cell layers. These layers differentiate to form the tissues of the body.
5. Epithelial Tissue Epithelial cells cover or line all body surfaces, cavities and tubes. So, These are called covering epithelia. Epithelial cells form the functional units of secretory glands. So, These are called glandular epithelia.
Biological tissue is a collection of interconnected
cells that perform a similar function within an
organism.
In other words, it is a group of cells working together mainly inside an organ.Epithelial cells cover or line all body surfaces, cavities and tubes. So, These are called covering epithelia.Epithelial cells form the functional units of secretory glands. So, These are called glandular epithelia.
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.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
2. Histology definition
is the study of the tissues of the body
and how these tissues are arranged
to constitute organs. The Greek root
histo can be translated as
either "tissue" or "web," both of
which are appropriate because
tissues are usually webs of
interwoven filaments and fibers,
both cellular and non cellular, with
membranous linings. Histology
involves all aspects of tissue biology
3. ?Why is histology important
It is important because it is one
of the tools in the medical
toolbox for diagnosis of
diseases. A great many
diseases reveal themselves at
the cellular level: many
cancers, bone and connective
tissue diseases, vascular
diseases, liver diseases, kidney
diseases and others can be
definitively diagnosed using
. histological techniques
4. General information
Tissue = Cells with similar structure &.
function organized into groups or layers
:Levels of cellular organization are.
Cells>tissue>organ>system>organism
:Four major types of tissues.
Epithelial (Covers or lines surfaces,
(found in glands
Connective (Bind & support body
(parts
(Muscle (Movement
Nervous (Detect changes & transmit
5. I-Epithelial tissue
characteristics of epithelial tissue
(Covers all body surfaces( inside & outside
Free surface & basement membrane =basal lamina
(which is (connective tissue
•
(High rate of cell division (healing
( vascularity (rely on diffusion
Many tightly packed cells, usually arranged into layers
6. Epithelial tissue that occurs on the interior surfaces of the
. body is known as endothelium
small amount of intercellular substance
The basement membrane provides structural
support for the epithelium and also binds it to
. neighbouring structures
Form glands ,part of sense organs & germinal structures
:-Function
Protection – epidermis of skin
Secretion_ glands
Sensory _neuroepithelium in taste buds
Contraction _ myoepithelium
Reproduction _germinal epithelium
10. Covering epithelium
:-According to no of layers
Simple epithelium= one layer
Stratified
//
> one layer
:-According to shape of cells
Squamous… like scales ,polyhedral,oval
central nucleus
Cuboidal … like cube,spherical central
nucleus
Columnar …oval basal nucleus
11. Simple epithelium
simple squamous epithelium around blood vessels,- 1
covering heart, lining body cavities
Function: diffusion
simple cubical epithelium collecting tubules of kidney-2
Function ion exchange
simple columnar epithelium intestine- 3
Function absorption
simple ciliated columnar epithelium oviduct- 4
pseudostratified columnar vasdefrense-5
pseudostratified ciliated columnar trachea-6
18. Acc to presence or absence of
duct
Endocrine-thyroid gland
Exocrine- sweat gland
Mixed- pancreas
19. Acc to method of secretion
Merocrine -secretory cells remain
intact, discharge by exocytosis- expancrease
Apocrine-apical part of glandular cell
detaches with secretion- exmammary gland
Holocrine-glandular cell burst-exsebaceous gland
20. Classification of glands acc to
shape of secretory portion
(tubular (intestinal glands-1
(alveolar (poisonous gland in skin of toad-2
(Tubulo-alveolar (salivary gland & pancreas
Classification of glands Acc to duct system
A) Simple :-)
Simple tubular gland (ex) intestinal gland
Simple coiled tubular (ex) sweat gland
Simple branched tubular (ex) sebaceous gland of human skin
Simple alveolar (ex) mucous& poisonous gland in skin of toad
:_B) compound)
compound tubular (ex) kidney
Compound alveolar (ex) mammary gland
Compound Tubulo-alveolar (ex) pancreas
21. Special types of epithelium
neuroepithelium (ex) taste buds- 1
germinal epithelium (ex) testis& ovary-2
myoepithelium (ex) lining of glands-3
Polarity of epithelium
Cilia for movement
microvilli
