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