Epithelial Tissue Flashcards
locations of simple squamous epithelium
lines heart, blood vessels, lymphatic vessels, air sacs of lungs, glomerular (Bowman’s) capsule of kidneys, and inner surface of the tympanic membrane (eardrum)
simple squamous epithelium forms the epithelial layer of _____, such as the _____
serous membranes; peritoneum
function of simple squamous epithelium
filtration, diffusion, osmosis, and secretion in serous membranes
simple squamous epithelium is present in the mesothelium in the ____ and the endothelium in _____
peritoneum; arterioles and venules
function of simple cuboidal epithelium
secretion and absorption
locations of simple cuboidal epithelium
- surface of ovary
- kidney tubules & smaller ducts of many glands
- secreting portion of some glands like the thyroid gland & ducts of some glands like the pancreas
- anterior surface of capsule of lens of the eye
- posterior pigmented epithelium of eye
epithelium that can be ciliated or nonciliated
simple columnar epithelium
simple columnar epithelium may contain mucus-secreting unicellular glands or _____
goblet cells
function of simple columnar epithelium
- absorption
- secretion of mucus, enzymes, or other substances
- ciliated type propels mucus (or reproductive cells) by ciliary action
_____ contains cells with microvilli at some locations
nonciliated simple columnar epithelium
location of nonciliated simple columnar epithelium
- lines gastrointestinal tract (from stomach to anus)
- lines excretory ducts of many glands
- lines gallbladder
location of ciliated simple columnar epithelium
- lines portions of upper respiratory tract
- uterine tubes
- uterus
- some paranasal sinuses
- central canal of spinal cord
- ventricles of the brain
function of ciliated simple columnar epithelium
moves mucus and other substances by ciliary action
can be keratinized or nonkeratinized
stratified squamous epithelium
function of startified squamous epithelium
protects underlying tissues in areas subjected to abrasion
locations of nonkeratinized stratified squamous epithelium
lining of esophagus, mouth, tongue, part of epiglottis, part of pharynx, and vagina
location of keratinized stratified squamous epithelium
superficial layer of skin (epidermis)
location of stratified cuboidal epithelium
ducts of adult sweat glands and esophageal glands and part of the male urethra (very rare in the body)
function of stratified cuboidal epithelium
protection and limited secretion and absorption
location of stratified columnar epithelium
-lines part of urethra
-large excretory ducts of some glands such as esophageal glands
-small areas in anal mucous membrane
-part of the conjunctiva of the eye
(very rare in body)
function of stratified columnar epithelium
protection and secretion
can be ciliated or noncilated
psuedostratified columnar epithelium
as well as simple columnar epithelium
function of pseudostratified columnar epithelium
secretion, particularly of mucus; propulsion of mucus by ciliary action
location of ciliated pseudostratified columnar epithelium
lines the trachea and most of the upper respiratory tract
location of nonciliated pseudostratified columnar epithelium
males sperm-carrying ducts, epididymis, larger ducts of many glands, part of male urethra
function of transitional epithelium (urothelium)
stretches readily and permits distention of urinary organ by contained urine
location of urothelium
lines the ureters, bladder, and part of urethra
the basement membrane is made up of the ____ and _____
basal lamina; reticular lamina
____ are larger than _____
cilia; microvilli
apical domain specializations
microvilli, stereocilia, cilia
____ are the lateral domain specializations
intercellular junctions
EM is associated with the ____ and light microscopy is associated with the ______
basal lamina; basement membrane
simple tubular found in _____ and simple branched tubular found in ______
intestinal glands; stomach (gastric) glands
simple branched alveolar found in ______
sebaceous (oil) glands
compound tubular found in _____
Brunner’s glands of small intestine
compound alveolar found in _____
mammary glands
compound tubuloalveolar found in _____
salivary glands