Functions Of Epithelia Protection: Convering epithelium specially
of skin oral cavity and esphagus protect
underline structures.
Secretion: Goblet cells and Gastric mucosal
surface and othres do the function of secretion.
Absorption: In kidney and small intestine
selective things are absorbed.
Filtration: Urine, sweat and carbon dioxide
are examples.
Excretion: Certain epithelial cells do this from
the blood those waste products which are carried
in the blood. Urine and sweat and carbon dioxide
are examples of this also.
Classification Of Epithelium simple squamous epithelium Function:diffusion,filtration,secretion and
some protection against friction
location:alveoli of lungs,linig of blood
vessels,inner surface of the eardrum Simple Cuboidal Epithelium
functions:active transport and facilitated
diffusion result in secretion and absorption
by cells of the kidney tubules.
location:kidney tubules,glands and their ducts,
choroid plexuses of the brain,surface of the ovaries Simple Columnar Epithelium
function:movement,absorption,
secretion
location:brochioles of lungs,
uterus,uterine tubes Pseudostratified Columnar Epithelium
function:secretion,filtration
location:lining of nasal cavity,bronchi Stratified Squamous Epithelium
location:bladder,ureter,urethra In epithelium or tissues,there is a secretory
structure that is called "glands".
glands are responsible for secretion of anti bodies,
mucous,and dead cells.