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epithelial chrctstcs
Question | Answer |
---|---|
epithelial characteristics | - cellularity - regeneration - avascularity: lacks own blood supply - polarity: apical vs. basal - supported by connective tissue |
ET functions | - absorption - secretion - protection - diffusion - filtration |
how to identify ET | - find the lumen - find the apical surfaced - shape of cells - arrangement |
keratinized vs. non-keratinized | keratinized: epidermis (dry) non-keratinized: vagina/esophagus |
goblet cells | found in pseudostratified columnar ET: secretes mucus |
cilia | found in pseudostratified columnar ET: propels mucus |
intercalated discs | found in cardiac muscles |