CHAPTER30URINARSYSTEMwebctFEWSLIDES

CHAPTER30URINARSYSTEMwebctFEWSLIDES - CHAPTER 30...

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Unformatted text preview: CHAPTER 30 HOMEOSTASIS (b) Glomerular Filtration Blood pressure forces Glomerular filtrate (G.F.) out of glomerulus G.F. : Water, Glucose, Ions, Amino acids, Vitamins, nitrogenous wastes, (no blood cells or proteins) G.F. enters Bowmans capsule Glomerulus Bowmans Capsule 180 liters (50 gallons) of G.F. formed each day Most is reabsorbed 1.2 liters of urine voided/day Glomerular filtrate Glomerular filtrate Bowmans capsule (c) Tubular Reabsorption Movement of G.F. out of renal tubule back into blood Occurs all along length of renal tubule Proximal convoluted tubule: - Major site of tubular reabsorption- ~ 60% of G.F. volume and nearly all glucose, amino acids, and vitamins are reabsorbed Most reabsorption of solutes is by active transport H 2 O follows passively For most substances (except glucose): o Transport maximum or renal threshold Upper limit to reabsorption Tubular Reabsorption Renal Tubule Blood Vessel (d)...
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This note was uploaded on 04/26/2008 for the course BIO 1504 taught by Professor Williamson during the Fall '07 term at Mississippi State.

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CHAPTER30URINARSYSTEMwebctFEWSLIDES - CHAPTER 30...

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