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37 Cards in this Set
- Front
- Back
simple squamous epithelium
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single layer of thin cells
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functions of simple squamous epitehlium
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allows rapid diffusion or transport of substances through membrane; secrets lubricating serous fluid
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where simple squamous epithelium can be found
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air sacs of lungs, glomerular capsules of kidneys, inner lining of heart and blood vessels, serous membranes of stomach, intestines, some other viscera; surface mesothelium of pleurae, pericardium, peritoneum, mesenteries
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simple cuboidal epithelium
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single layer of square or round cells
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function of simple cuboidal epithelium
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avsorption and secretion, production of protective mucous coat; movement of respiratory mucus
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where simple cuboidal epithelium can be found
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liver, thyroid, mammary, salivary, other glands, kidney tubules, bronchioles
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pseudostrafied columnar epithelial tissue
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looks multilayered; some cells do not reach free surface
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where pseudostratified columnar epithelial cells can be found
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respiratory tract from nasal cavity to bronchi, portions of male urethra
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functions of pseudostratified columnar cells
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secretes and propels mucus
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stratified squamous epithelium-keratinized
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multiple cell layers with cells becoming increasingly flat and scaly toward surface
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basal cells maybe cuboidal to columnar, apical cells may lack nuclei, keratinized
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stratified squamous epithelium
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functions of stratified squamous epithelium
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resists abrasion, retards water loss through skin, resists penetration by pathogens
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stratified squamous epithelial-nonkeratinized
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same as keratinized epithelium but w/out the surface layer of dead cells
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functions of stratified squamous epithelial-nonkeratinized
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resists abrasion and penetration by pathogenic organisms
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where stratified squamous epithelial-non keratinized can be found
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tongue, oral mucosa, esophagus, anal canal, vagina
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stratified cuboidal epithelium
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two or more layers of cells, surface cells square or round
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where stratified cuboidal epithelium is found
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sweat glands ducts, egg-producing vesicles of ovaries, sperm-producing ducts of testis
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functions of stratified cuboidal epithelium
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contributes to sweat secretion, secretes ovarian hormones, produce sperm
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transisitional epithelium
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resembles stratified squamous epithelium, surface cells are rounded, not flattened, often bulge at surface, may be flatter and thinner when epithelium stretch
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simple columnar epithelium
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single layer of tall, narrow cells
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where simple columnar epithelium can be found
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inner lining of stomach, intestine, gall bladder, uterus, uterine tubes, some kidney tubules
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functions of simple columnar epithelium
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absorption, secretion of mucus and other products, movement of egg and embryo in uterine tube
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pseudostratified columnar epithelium
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looks multilayered; some cells do not reach free surface
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where pseudostratified columnar epithelium can be found
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respiratory tract from nasal cavity to bronchi, portions of male urethra
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functions of pseudostratified columnar epithelium
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secretes and propels mucus
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stratified squamous epithelium-keratinized
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multiple cell layer w/ cells becoming increasingly flat and scaly toward surface
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functions of stratified squamous epithelium-keratinized
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resists abrasion, retards water loss through skin, resists penetration by pathogens
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basal cells maybe cuboidal to columnar, apical cells may lack nucleus
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stratified squamous epithelium-keratinized
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stratified squamous epithelium-nonkeratinized
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same as keratinized epithelium but w/out the surface layer of dead cells
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where stratified squamous epithelium-nonkeratinized can be found
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tongue, oral mucosa, esophagus, anal canal, vagina
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functions of stratified squamous epithelium-nonkeratinized
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resists abrasion and penetration by pathogenic organisms
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stratified cuboidal epithelium
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two or more layers of cells, surface cells square or round
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where stratified cuboidal epithelium can be found
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sweat gland ducts, egg-producing vesicles of ovaries, sperm-producing ducts of testis
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functions of stratified cuboidal epithelium
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contributes to sweat secretion, secretes ovarian hormones, produce sperm
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transitional epithelium
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resembles stratified squamous epithelium, surface cells are rounded, not flattened, often bulge at surface, may be flatter and thinner when epithelium when stretched
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where transitional epithelium can be found
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urinary tract part of kidney, ureter, bladder, part of urethra, allantoic duct in umbilical cord
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function of transitional epithelium
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stretches to allow filling of urinary tract
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