BIOM 4070 Study Guide - Quiz Guide: Tonicity, Aldosterone, Countercurrent Multiplication

• School: University of Guelph
• Department: Biomedical Sciences
• Course: BIOM 4070
• Professor: Brenda L Coomber

Document Summary

Hilum: blood vessels, nerves, lymphatics, & ureter enter/exit. Cortex = outer region, corpuscles and tubules, blood filtration and some transport. Medulla: inner region, pyramids, thick & thin, ascending & descending loops, urine concentration. Papilla: tip of each pyramid, connect to minor calyx. Renal column: extensions of cortex that separate each pyramid. Medullary rays: loops & collecting ducts of several nephrons, 400-500/kidney. Simple epithelium along length, but types varies with location. Functions: filtration: blood nephron lumen, in glomerulus, secretion: interstitial space nephron lumen, in tubules, reabsorption: nephron lumen interstitial space, in tubules. Glomerulus (fenestrated capillary loops) & bo(cid:449)(cid:373)a(cid:374)"s (cid:272)apsule. During development, capillary ball pushes through ball. Parietal layer: outer, simple squamous, becomes cuboidal at pct. Visceral layer: inner, formed by podocytes and endothelial cells forming 2 layers of capillaries. Filtrate flows through capillary wall, through visceral layer into capsular space. Tubular pole/urinary pole: filtrate enters proximal convoluted tubule. Vascular pole: afferent & efferent arterioles enter/exit glomerulus.