BIO2A03-2011-L15 - Biology 2A03 Lecture 15 Kidney II...

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Unformatted text preview: Biology 2A03 Lecture 15 Kidney II Bowmans capsule Glomerulus Efferent Arteriole Afferent Arteriole Proximal convoluted tubule Distal convoluted tubule Common collecting duct Loop of Henle (I n the medulla) Fig 19-3 Proximal tubule Peritubular Capillary Bed Vasa Recta Afferent arteriole Efferent arteriole Fig 19-6 SNS input to both Glomerular filtration To Renal Vein N ephr on Components - Blood side- essentially two capillar y beds in ser ies, joined by an ar ter iole = por tal system Afferent Arteriole = 1 st important site of vascular resistance control Glomerulus = 1 st capillary bed, site of formation of primary urine by filtration (bulk flow of protein free plasma) Efferent Arteriole = 2 nd important site of vascular resistance control Peritubular Capillary Bed & Vasa Recta = 2 nd capillary bed, site of reabsorption (selective transport from tubule to I F) & secretion (selective transport back to tubule) Filtration, reabsorption & secretion are the 3 basic processes by which the urine is formed N ephr on Components - Ur ine or Tubule side...
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BIO2A03-2011-L15 - Biology 2A03 Lecture 15 Kidney II...

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