epithelium Flashcards
location
forms the outer covering and inner lining of internal organs like kidney tubules and glands.
intercellular spaces
almost none, they are very tightly packed tissues
matrix
non-living, no-cellular matrix, consisting of a protein, COLLAGEN
function
1.protective tissue
2.forms barrier to separate 2 or more body systems
3.prevents bacterial and fungal infection
permeability
selectively permeable to allow entry of different substances from the external environment into the body or through the internal organs.
Types on the basis of shape
1.SQUAMOUS EPITHELIUM
2.CUBOIDAL EPITHELIUM
3.COLUMNAR EPITHELIUM
Types on the basis of layers
1.STRATIFIED
2.PSEUDOSTRATIFIED
3.SIMPLE
Other types
1.CILIATED EPITHELIUM(both columnar and cuboidal)
2.GLANDULAR EPITHELIUM(both columnar and cuboidal)