Question | Answer |
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. |