BIOL 2P93 Lecture Notes - Basal Lamina, Afferent Arterioles, Arteriole

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Kidney cortex: contains distinctive glomeruli, convoluted tubules, parts of collecting ducts. Kidney medulla: below the cortex, contains limbs of henle & collecting ducts. Medullary ray: groups of collecting ducts that extend from cortex to medulla. Calyx: terminal expansions of ureter in the kidney, minor calyces meet up with papilla (papilla . Papilla: termination of collecting duct into a minor calyx. Lobe: a medullary pyramid and the overlying cortex. Lobule: lateral borders marked by medullary rays. Arteries in order: abdominal aorta, renal artery, interlobar, arcuate, interlobular, intralobular, afferent arteriole, glomerulus, efferent arteriole, vasa recta minor calyx major calyx pelvis ureter) Glomerulus: tufts of capillaries with fenestrated ( holey ) endothelium. Parietal epithelium: squamous pariental epithelium of bowman"s capsule that"s continuous w/ epithelium of proximal tubule. Podocytes: easily seen at border of glomerulus, obvious under em, have filtration slits that act as filtration barrier; fxn: manufacture basement membrane, provide filtration support.

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