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8 Cards in this Set

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Describe simple squamous epithelium. Function? Location?
Describe simple squamous epithelium. Function? Location?
Description: single layer of flattened cells. Disc chaped central nuclei. Sparse cytoplasm. Simplest epithelium

Function: Diffusion & filtration, allows passage of materials where protection is not important. Secretes lubrication in serosae

Location: Air sacs of lungs, serosae (in ventral body cavity), lining of heart
Describe simple cuboidal epithelium. Function? Location?
Describe simple cuboidal epithelium. Function? Location?
Description: Single layer of cube shaped cells with large, spherical central nuclei.

Function: Secretion & absorption

Location: Kidney tubules, ducts & secretory portions of small glands, ovary surface
Describe simple columnar epithelium. Function? Location?
Describe simple columnar epithelium. Function? Location?
Description: Single layer of tall cells, round to oval nuclei, some cells have cilia, some layers have goblet cells (mucus secreting glands)

Function: Absorption, secretion of mucus & enzymes, cilia propels mucus

Location: Non-ciliated: digestive tract, gallbaldder; ciliatated: small bronchi, uterine tubes
Describe pseudostratified columnar epithelium. Function? Location?
Describe pseudostratified columnar epithelium. Function? Location?
Description: Single layer of cells with different heights, appears like 2 layers, but all cells are connected to basement membrane. May contain goblet cells & cilia

Function: Secretion, particularly of mucus, cilia propels mucus

Location: Non-ciliated: sperm carrying ducts, ducts of large glands; ciliated: trachea, upper respiratory tracts
Describe stratified squamous epithelium. Function? Location?
Describe stratified squamous epithelium. Function? Location?
Description: Thick membrane of more than one layer of cells, apical cells are flat, basal cells are cuboidal or columnar.

Function: Protects deeper tissues in areas subject to abrasion

Location: Epidermis of skin, esophagus, mouth, vagina
Describe stratified cuboidal epithelium. Function? Location?
Describe stratified cuboidal epithelium. Function? Location?
Description: 2 layers of cube shaped cells

Function: Protection

Location: Ducts of sweat glands, mammary & salivary glands
Describe stratified columnar epithelium. Function? Location?
Describe stratified columnar epithelium. Function? Location?
Description: 2 or more layers, superficial cells columnar, basal cells cuboidal

Function: Protection, secretion

Location: Rare---male urethra & duct of large glands
Describe transitional epithelium. Function? Location?
Describe transitional epithelium. Function? Location?
Description: Looks like stratified squamous & stratified cuboidal, apical cells round/dome shaped, basal cells cuboidal/columnar

Function: Stretches & permits distension

Location: Bladders, ureter, urethra