Classification of epithelia Flashcards
Kinds of squamous epithelia
- Simples squamous
- Mesothelium
- Endothelium
Squamous epithelia in charge of absorption and diffusion
Simple squamous
Squamous epithelia that lines body cavities
Mesothelium
Squamous epithelia that lines heart and blood vessels
Endothelium
- Protects against attacks
- Keratin protein adds strength and water resistance
- Keratinized or non-keratinized
Stratified squamous epithelium
Kinds of cuboidal epithelia
Simple cuboidal epithelium
Stratified cuboidal epithelium
Cuboidal epithelim in charge of secretion and absorption
Simple cuboidal epithelium
Cuboidal epithelium in charge of sweat ducts and mammary ducts
Stratified cuboidal epithelia
Locations of simple squamous epithelium
Mesothelia lining pleural, pericardial, and peritoneal cavities;
endothelia lining heart and blood vessels;
portions of kidney tubules (thin sections of nephron loops);
inner lining of cornea; alveoli of lungs
Functions of simple squamous epithelium
reduces friction, controls vessel permeability; performs absorption and secretion
Stratified squamous epithelium locations
surface of the skin, lining of the mouth, throat, esophagus, rectum, anus, and vagina
Functions of stratified squamous epithelium
Provides physical protection against abrasion, pathogens, and chemical attack
Locations of simple cuboidal epithelium
glands
ducts
portions of kidney tubules
thyroid gland
locations of stratified cuboidal epithelium
lining of some ducts (rare)
functions of stratified cuboidal epithelium
protection
secretion
absorption
-Tolerates repeated cycles of stretching and recoiling and returns to its previous shape without damage
Transitional epithelium
Appearance changes as stretching occurs
Transitional epithelium
Situated in regions of the urinary system
Transitional epithelium
Transitional epithelium can be found in the ________ ________
urinary bladder
Locations of transitional epithelium
urinary bladder, renal pelvis, ureters
functions of transitional epithelium
permits expansion and recoil after stretching
Kinds of columnar epithelia
Simple columnar epithelium
Pseudostratified columnar epithelium
Stratified columnar epithelium
Columnar epithelia in charge of absorption and secretion
Simple columnar epithelium
Columnar epithelia in charge of cilia movement
Pseudostratified columnar epithelium
Columnar epithelia in charge of protection
Stratified columnar epithelium
Locations of simple columnar epithelium
Lining of stomach Intestine Gallbladder Uterine tubes Collecting ducts of kidneys
Functions of simple columnar epithelium
Protection
Secretion
Absorption
Locations of pseudostratified ciliated columnar epithelium
Lining of nasal cavity
Trachea
Bronchi
Portions of mal reproductive tract
Functions of pseudostratified ciliate columnar epithelium
Protection, secretion, move mucus with cilia
Locations of the stratified columnar epithelium
small areas of the pharynx, anus, mammary glands, salivary gland ducts and urethra
Function of stratified columnar epithelium
Protection
