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15 Cards in this Set

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Classification of Epithelia:
Both Names:Simple Squamous
Type: Mesothelium -What is it?
Lines the ventral body cavities; the pleura, peritoneum, and pericardium each
Classification of Epithelia:
Both Names:Simple Squamous
Type: Endothelium -What is it?
The simple squamous epithelium lining the heart and all the blood vessels
Classification of Epithelia:
Both Names:
- Stratified Squamous:
-Location and keratinized epithelium
Found where mech. stresses are severe; apical layers have keratin that make the surface layers tough and water resist; here the epithelium is said to be keratinized.
Classification of Epithelia:
Both Names:
- Stratified Squamous:
-Nonkeratinized
provides resistance to abrasion, but will dry out and deteriorate unless kept moist; found in oral cavity, pharynx, esophagus,rectum, anus and vagina
Classification of Epithelia:
Second Name:
-Cuboidal Epithelia
resemble hexagonal boxes;appear square, nucleus is near the center and distance b/w nuclei is equal to the height of the epithelium
Classification of Epithelia:
Both Names:
-Simple Cuboidal
provides limited protection; found in areas where secretion or absorption takes place, eg. kidney tubules
Classification of Epithelia:
Both Names:
-Simple Cuboidal:
-does this secrete enzymes?
yes, and buffers and line the ducts that discharge those secretions; eg. thyroid gland secretes thyroxine via simple cuboidal epi that line the follicles of the thyroid
Classification of Epithelia:
Both Names:
-Stratified Cuboidal
rare, found in ducts of sweat glands and in larger ducts of other exocrine glands like the mammory glands
Classification of Epithelia:
Second Name:
-Transitional
-line the renal pelvis, ureters and bladder; when stretched it's stratified, nonkeratinized epi.
-the empty bladder has many layers, outer cells are usually rounded cuboidal; the design of the transitional epi allows for distension w/o damage to component cells
Classification of Epithelia:
Second Name:
-Columnar
hexagonal, height is much greater than width; nuclei are crowded in a narrow band close to basal lamina and height of the epithelium is several times the distance b/w the nuclei
Classification of Epithelia:
Both Names:
-Simple Columnar
provides protection; found in areas where absorption or secretion occurs; lines the stomach, intestinal tract, uterine tubes and exretory ducts.
Classification of Epithelia:
Both Names:
-Pseudostratified Columnar
includes a mix of cell types; b/c their nuclei are situated at varying distances from the surface, it appears to be stratified or layered, but it's not b/c all cells are attached to basal lamina
Classification of Epithelia:
Both Names:
-Pseudostratified Ciliated Columnar
like the pseudostratified columnar, but have cilia, found in nasal cavity, trachea, bronchi, and in male reproductive tract
Classification of Epithelia:
Both Names:
-Stratified Columnar
rare, protect the pharynx, urethra, and anus; may have two layers, if more than 2, only surface cells have columnar shape
Glandular Epithelia
-How are they classified?
by the type of secretions released, structure of the gland and the mode of secretion