Simple & Stratified Epithelial Tissues Flashcards
Simple Epithelial Tissues defintion
only one layer of cells
Simple squamous epithelium:
what is it
Single, flat layer of cells that is thin and permeable
Simple cuboidal epithelium:
what is it
single, cubed shape layer of cells
Simple columnar epithelium:
what is it
Single, tall layer of cells
May have cilia and goblet cells, which secrete mucus
Stratfied Epithelial Tissue
more than one layer of cells
Stratified squamous epithelium:
what it is
thick layers provide protection for the underlying layers
Stratified cuboidal epithelium:
what it is
More than one layer of cuboidal cells
Stratified columnar epithelium:
what is it
Free surface is lined with columnar cells
pseudostratified epithelium
what is it
pseudo= false
In pseudostratified epithelium, cell nuclei are found at different levels, so it appears stratified, though it is not.
transitional epithelium
what is it
The free surface cells of transitional epithelium vary in appearance based on the stretching of the tissue.
Simple squamous epithelium:
function
function: rapid diffusion of materials
Simple squamous epithelium:
where is it
found in blood vessles and lung tissues
Simple cubodial epithelium:
function
function: secretion and absorption of substances
Simple cubodial epthiliem:
location
found in the tissues and kidneys
Simple columbnar epithelium:
function
Function: Secretion of mucus for protection & absorption of substances
Simple columbar epithelium:
location
Found in the lining of the digestive tract
Stratified squamous epithelium:
function
none
Stratified squamous epithelium:
location
Found in the epidermal layer of the skin
Stratified cubodial epithelium:
function
no function
Stratified cubodial epithelium:
location
Rare in the body
Found in salivary & mammary glands
Stratified columbnar epithelium:
function
none
Stratified columbnar epithelium:
location
Found in your larynx and the male urethra
Rare in the body
pseudostratified epithelium
function
Function: Secretion & Absorption
pseudostratified epithelium
location
Found in most of the upper respiratory tract
transitional epithelium
funciton
“Transition” = change shape with elasticity
transitional epithelium
location
Found in the lining of the urinary bladder
