chapter 5 tissues Flashcards
what are the intercellular joints
Tight junctions, desmosomes, gap junctions
What is tight junction
Close space between cells
Located among cells that form linings
What is Desmosomes
rivets or spot welds, skin cells enabling them to reinforce structural units
location of Epithelial Tissue
Covers the body surface and organs, forms the inner lining of the body cavities, and lines hollow organs.
The function of Epithelial Tissue
Protection, secretion, absorption and excreation
Characteristic of epithelial tissue
Lack of blood vessels, cells readily divided, cells are tightly packed
describe simple squamous
single layer flatten cell
describe simple cuboidal
single layer cube-shaped cell
describe simple columnar
single layer elongated cell
describe pesudostratified columnar
single layer elongated cell
describe stratified squamous
many layers, top cell flatten
describe stratified cuboidal
2 to 3 layer cube shaped cells
describe stratified columnar
top layer of the elongated cell, lower layers of cube shaped cells
Describe transitional
Many layers of cube-shaped and elongated cells
Glandular
Unicellular or multicellular
function of simple squamous
filtration, diffusion, osmosis, covers surfaces
function of cuboidal
secretion and absorption
function of columnar
protection, secretion and absorption
function of pseudostratified columnar
protection, secretion, movement of mucus and substance
Function of stratified squamous
protection
function of stratified cuboidal
protection
function of stratified of columnar
protection, secretion
function of transitional
distensibility protection
function of glandular
Secretion
location of simple squamous
air sac lungs, walls of capillaries, lining of blood and lymph vessels
location of simple cuboidal
Surface of ovaries, lining of kidney tubules, and lining of ducts of certain glands
location of simple columnar
lining of uterus, stomach and intestines
location of pseudostratified columnar
lining of respiratory passage
location of stratified squamous
outer layer of the skin lining of oral cavities
location of stratified cuboidal
lining of ducts of mammary glands, sweet glands, salivary glands, pancreas
location of stratified of columnar
part of the male urethra and lining of large ducts of excretory glands
location of the transitional
inner lining or urinary bladder and lining or ureters and part of urethra
location of glandular
Salivary glands, sweet glands, endocrine glands
what types of exocrine glands
unicellular and Multicellular glands, simple glands ( simple tubular, coiled tubular, branched tubular glands and simple branched alveolar gland) and Compound glands ( compound tubular and alveolar glands)
what dose endocrine glands do
secrete into tissue fluid or blood
what dose exocrine glands do
secrete into ducts
what are the connective tissue proper includes
protein fibers and a ground substance of nonfibrous protient
3 types of glandular secretion
merocrine, apocrine, and holocrine
what is a merocrine gland and give and example
a fluid product released through the cell membrane by exocytosis. example salivary glands, pancreatic glands and sweet glands of the skin
what is apocrine and a example
cellular product and portions of the free ends of glandular cells pinch off during secretion example mammary glands, ceruminous glands lining the external acoustic meatus
what is holocrine and give an example
disintegrated entire cells filled with secretory products example Sebaceous glands of the skin
characteristics of connective tissue
comprise much of the body and are the abundant type of tissue by weight
function of connective tissue
binds structure, provide support, and protection, they fill space store fat, produce blood cells, protects against infection and helps repair tissue
what are the major cell types of connective tissue
fibroblast, mast cell, macrophages
what is fibroblast and function
widely distributed, large, star-shaped cells
function: secrete proteins that become fibers
What are mast cells and functions
large cells, usually located near blood vessels
function: release substance that may prevent blood clotting and promote inflammation
What are Macrophages and functions
motile cells sometimes attached to fibers
functions: clear foreign particles from tissue by phagocytosis
what are the major connective tissue fibers
Collagenous, reticular and elastic
what are collagenous and function
thick, threadlike fibers of collagen with great tensile strength
function: hold structure together
what are elastic fiber and function
bundles of microfibrils embedded in elastin
function: provide elastic quality to parts that stretch
what are reticular fibers and function
thin fibers of collagen
function: from delicate supportive networks within tissue
what cells of connective tissue describes Cells in fluid gel-matrix
Areolar, adipose, reticular, dense regular, dense irregular and elastic connective tissue
what cell of connective tissue describes Cells in solid gel-matrix
Hyaline and elastic cartilage and fibrocartilage
Describe bone tissue
cells in solid matrix
describe blood tissue
cells in platelets in fluid matrix
give the function and location of Areolar connective
F: Binds organs L: beneath the skin, surrounds organs
function and location of Adipose connective
F: Protects, insulates, and stores fat L: Beneath the skin, around the kidney, behind the eyeballs, on the surface of the heart
function and location of Reticular connective
F: Support L; Walls of liver and spleen
function and location Dense regular connective
F: binds body parts, L: Tendons and legaments
function and location dense irregular connective
F: Sustains tissue tension L: Dermis
function and location elastic connective
F: Provides elastic quality L: Connecting parts of the spinal column, in walls of arteries and air ways
function and location Hyaline cartilage
F: support, protects, provides framework L: End of bones, nose, and rings in walls of respiratory passage
function and location elastic cartilage
F: support, protects, and provides flexible framework, L: Frame work of external ear and part of larynx
function and location fibrocartilage
F: Supports protects and absorbs shock L: between bony parts of spinal column parts of pelvic, gridle and knee
function and location of bone tissue
F: supports, protects, and provides framework L: Bones of skeleton and middle ear
function and location blood tissue
F: transports gasses, defends against disease. clotting L: Throughout the body in a close system of blood vessels and heart chambers.
four types of epithelial membranes
serous, mucous, cutaneous and synovial
What is a serous membrane
Line body cavities that do not open to the outside Reduce friction Inner lining of thorax and abdomen Cover organs of thorax and abdomen Secrete serous fluid
what is a mucous membrane
Line tubes and organs that open to outside of body
Lining of digestive, respiratory, urinary, and reproductive tracts
Secrete mucus
What is cutaneous membrane
Covers body
Skin
what is a synovial membrane
Composed entirely of connective tissue
Lines joints
characteristic of muscle tissue
Muscle cells also called muscle fibers
Contractile
description, function and location of Skeletal muscle tissue
D:Long threadlike cells, striated many nuclei
F: voluntary movement
L: usually attached to bones
description, function and location of smooth muscle tissue
D: shorter cells, single, central nuclei
F: involuntary movement
L: Walls of hollow internal organs
description, function and location of Cardiac muscle tissue
D: Branched cells, striated, single nucleus
F: Heart movement
L: Heart muscle
description, function and location of nervous tissue
D: Cells with cytoplasmic extension
F: Sensory reception, and conduction of electrical impulses
L:Brain, spinal cord, and peripheral nerves
