MEDI112 Lecture Notes - Lecture 9: Distal Convoluted Tubule, Proximal Tubule, Renal Blood Flow
6 Aug 2018
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Document Summary
Urinary system organs: kidneys, filter 200l fluid daily (body contained 42l fluid, urinary bladder, temporary storage reservoir for urine, ureters, transport urine from kidneys to bladder, urethra, transports urine out of body. Sympathetic (thoracolumbar) division: renal nerve supply is predominantly by sympathetic fibres, alter vessel diameter to, modulate renal blood flow, modulate urine production (implications for map) Blood supply: renal arteries deliver 1200ml of cardiac output to the kidneys each minute, arterial flow into and venous flow out of the kidneys follow similar paths, path of blood flow through renal blood vessels, major blood vessels: Impermeable to water: distal convoluted tubule (dct, cuboidal cells with very few microvilli, function more in secretion than reabsorption, confined to cortex. Collecting ducts: receive filtrate from many nephrons, run through medulla = striped appearance, fuse together to deliver urine through papillae into minor calyces major calyces. Renal pelvis ureter bladder urethra: cell types:
