front 1 List functions of Epithelial cell | back 1 Protects, lines, covers, filters biochemical substances, absorbs nutrients, provides sensory input, manufactures secretions and excretions |
front 2 List common characteristics | back 2 polar, have lateral surfaces, lack blood vessels and capillaries, most are innervated |
front 3 Apical Surface | back 3 side that faces lumen or body cavity |
front 4 Basal surface | back 4 side of cell that faces underlying connective tissue |
front 5 Tight Junction | back 5 formed by fusion of outer layers of plasma membrane of adjoining cells, found where there can be no leaks, like bladder and digestive tract |
front 6 Desmosomes | back 6 strong welded plaque which connects walls, has filaments like velcro, tonofilaments extend anchor lines. found in tissue that stretches like skin and hair, uterus |
front 7 Gap junctions | back 7 linked by tube channels, connexons cytoplasm to cytoplasm, allows passage, found in intestine, heart, smooth muscle tissue |
front 8 Basement membrane | back 8 non living meshwork of fibers that cements to connective tissue |
front 9 E. cells classified by | back 9 number of layer of cells, shape of cells, prescence of surface specialization |
front 10 Simple squamous cell | back 10 delicate and thin, found in lining surfaces involved in passage of gas/liquid, fragile, lung/kidneys, mesothelium and endothelium |
front 11 Simple cuboidal cell | back 11 single layer cube cell, sheltered areas where secretion/absorption, important in endocrine and exocrine tissue. found in thyroid liver lining, pancreas, kidney, salivary gland |
front 12 Simple columnar cell | back 12 single layer, elongated and packed, nucleai aligned near basement, line gastro from stomach to rectum, secretion/absorption |
front 13 Absorptive cell | back 13 Apical surface blanketed by microvilli |
front 14 Goblet cell | back 14 wineglass shape, make and stores lubricating mucus |
front 15 Stratified Squamous | back 15 Various cell layers, areas subject to mechanical and chemical stress; lining of mouth, esophasgus, vagina, rectum, outer layer continuously worn away, cuboidal at basement pushed up |
front 16 Stratified Cuboidal | back 16 generally only 2 layers, found mainly along large excretory ducts; sweat, mammory, and salivary glands, importnat in protecting delicate deeper layers of |
front 17 Stratified columnar epithelium | back 17 rare, only found in select parts of respiratory, digestive, and reproductive systems |
front 18 Pseudostratified columnar epithelium | back 18 single layer, appears multi, found in respiratory, portions of male reporductive |
front 19 immunoglobulins | back 19 disease fighting molecules in mucus of respiratory tract |
front 20 Transitional e cell | back 20 ability to stretch, leak proof membrane, found in bladder, ureters, ureatha, calyxes of kidney |