CH 5: Epithelial Tissue Flashcards
A group or mass of similar cells working together to perform common functions
Tissue
Covers all body surfaces both inside and out. Cells reproduce rapidly, results in rapid healing. Cells tightly packed together.
Epithelial Tissue
How many days days for the outer layer of skin to shed and be replaced?
27 days, 1.5lb a year
Single layer epithelial tissue
Simple
Multiple layers epithelial tissue
Stratified
Flat epithelial tissue, either simple or stratified
Squamous
Square epithelial tissue, either simple or stratified
Cuboidal
Column (rectangle) epithelial tissue, either simple or stratified
Columnar
Looks: Flat and thin, Single Layer
Function: Diffusion and filtration.
Found: Air sacs in lungs, walls of capillaries
Simple Squamous
Looks: Single layer, square
Function: secretion and absorption
Found: in kidneys tubules, ducts and covering the ovaries
Simple Cuboidal
Looks: Single layer, rectangle
Function: Secretion and absorption
Found: in digestive tract and uterus
*Contains goblet cells to secrete mucus and can have microvillli
Simple Columnar
Looks: Multi layer, flat and thin
Function: protection
Found: in skin and mouth
Stratified Squamous
Looks: Layered and cube shape
Function: Protection
Found: Linings of mammary glands, sweat glands, salivary glands
Stratified Cuboidal
Looks: Layered and rectangle
Function: Protection, secretion
Found: Part of the Male urethra, pharynx
Stratified Columnar
Looks: appears layered but is single layer
Functions: Movement of mucus (secretion and cilli aide movement)
Found: Linings of respiratory passages
Pseudostratified Columnar
