IBIO 408 Study Guide - Final Guide: Simple Squamous Epithelium, Simple Columnar Epithelium, Renal Corpuscle

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The structure of epithelium reflects its ___ function: simple squamous epithelium a single layer of flat cells with disc shaped nuclei and sparse cytoplasm. Passage of materials by passive diffusion and filtration and secretes lubricating substances in seorsae (membranes) Expect things to pass through it such as gases. Special types- simple squamous epithelium: endothelium (inner covering)- slick lining of hollow organs, mesothelium (middle covering)- lines peritoneal, pleural, and pericardial caviites, covers visceral organs and those cavities. Location- simple squamous epithelium: renal corpuscles, alveoli of lungs, lining of heart, blood and lymphatic vessels and ventral body cavity (serosae, simple cuboidal epithelium single layer of cube like cells with large, spherical central nuceli. Function- simple columnar epithelium: absorption, secretion of mucus, ion transport, ciliated type propels mucus or reproductive cells by ciliary action. Function- pseudostratified ciloated columnar epithelium: secretion of mucus, propulsion of mucus by cilia. Non-ciliated form- is in ducts of male reproductive tubes and ducts of large glands.