Urinary System I - Kidney Day Introduction Kidney Day Introduction The Kidney’s Functions Functions of Kidneys 1 Produce Urine(as a function of

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Unformatted text preview: Kidney Day : Introduction Kidney Day : Introduction The Kidney’s Functions Functions of Kidneys: 1. Produce Urine (as a function of ridding body of Nitrogenous waste and other wastes. 2. Regulate water balance 3. Regulate acid-base of body fluids 4. Calcium Homeostatis ( Calcitriol) 5. In times of starvation ( Gluconeogenesis) 6. Secretes Erythropoieten 7. Secretes Renin ( Controls Blood pressure) 8. Detoxify free radicals with use of peroxisomes. Formation of Urine Formation of Urine Figure 15.5 Function of Nephron Parts Glomerulus Filtration of H 2 O and dissolved substances from plasma Bowman's Capsule Receives glomerular filtrate Proximal Tubule Reabsorbs glucose, amino acids, ions, organic acids, etc. Reabsorbs H 2 O Reabsorbs Cl- ions and other ions by electrochemical attraction Descending Limb Reabsorbs H2O by osmosis of Loop Ascending Limb Reabsorbs Cl- by active transport and of Loop passive reabsorption of Na+ Distal Tubule Reabsorbs Na+ by active transport Reabsorbs H2O by osmosis Active secretion of H+ ions Passive secretion of K+ ions by electrochemical attraction Summary of Tubular Summary of Tubular Reabsorption and Secretion Reabsorption and Secretion Kidney Function: Regulation of Body Kidney Function: Regulation of Body Fluids, their volume and osmolarity; Fluids, their volume and osmolarity; How is this accomplished? How is this accomplished? THE COUNTERCURRENT MECHANISM THE COUNTERCURRENT MECHANISM The Countercurrent Mechanism The Countercurrent Mechanism Unit 1 - Objective 7 ?...
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This note was uploaded on 12/08/2011 for the course AMY 2B taught by Professor Dianeolin during the Summer '09 term at Riverside Community College.

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Urinary System I - Kidney Day Introduction Kidney Day Introduction The Kidney’s Functions Functions of Kidneys 1 Produce Urine(as a function of

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