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ET lab 9/17/12

Introduction to aperio/epithelium lecture

Discuss the location, structure, and function of the basement membrane. location - under epithelium. Structure - fusion of basal lamina with reticular lamina. Function - Anchor epithelium to loose CT underneath
Apical and basal surfaces Apical = top, basal = bottom
simple squamous epithelium rapid diffusion. Capillaries, alveoli, glomeruli
simple cuboidal epithelium secretion and absorption. surface of ovaries, lining of nephrons, walls of renal tubules, parts of the eyes and thyroid
Simple columnar epithelium move mucus and other substances. stomach, small intestine, uterus
microvilli increase surface area for absorption, secretion
goblet cells secrete mucin (mucus). Glandular simple columnar ET
Cilia beat to move stuff. Found in trachea, fallopian tubes
stratified cuboidal ET cuboidally shaped in multiple layers. Protect ducts of sweat glands, mammary glands, and salivary glands
stratified columnar ET secretion and protection. ocular conjunctiva of the eye, parts of pharynx and anus, uterus, urethra and vas deferens
stratified squamous nonkeratinized ET kept moist by body secretions. cornea, oral cavity, vagina, internal portion of lips, esophagus, anal canal
stratified squamous keratinized ET protected from abrasion by keratin, and kept hydrated and protected from dehydration by glycolipids produced in stratum granulosum. Skin, tongue, external lips
pseudostratified columnar ciliated ET secretion or absorption. trachea, upper respiratory tract
transitional epithelium deal with changes in volume of fluid. Bladder, ureters, superior urethra, gland ducts of prostate.
Created by: 583931909