16. DUAL CONTROL OF ALDOSTERONE SECRETION 03/29/10 Fall in sodium ECF Volume Blood Pressure Increased Plasma Potassium Increased Aldosterone secretion Increased Tubular Potassium Secretion Increased Urinary Potassium Secretion Increased Tubular Sodium Reabsorption Fall in Urinary Sodium Excretion www.freelivedoctor.com
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26. COUNTERCURRENT MAKES THE OSMOTIC GRADIENT 03/29/10 300 450 600 750 900 1050 1200 1200 From Proximal Tubule To Distal Tubule Cortex Medulla 300 450 600 750 900 1050 1200 1200 100 250 400 550 700 850 1000 1000 Active Sodium Transport Passive Water Transport Long Loop of Henle www.freelivedoctor.com
27. THE OSMOTIC GRADIENT CONCENTRATES THE URINE WHEN VASOPRESSIN (ANTI DIURETIC HORMONE [ADH]) IS PRESENT 03/29/10 From Distal Tubule Cortex Medulla 300 450 600 750 900 1050 1200 1200 300 400 550 700 850 1000 1100 1200 Interstitial Fluid Collecting Duct Pores Open Passive Water Flow www.freelivedoctor.com
28. WHEN VASOPRESSIN (ANTI DIURETIC HORMONE [ADH]) IS ABSENT A DILUTE URINE IS PRODUCE 03/29/10 From Distal Tubule Cortex Medulla 300 450 600 750 900 1050 1200 1200 100 100 100 100 100 100 100 100 Interstitial Fluid Collecting Duct Pores Closed No Water Flow Out of Duct www.freelivedoctor.com
![THREE BASIC RENAL PROCESSES ,[object Object],[object Object],[object Object],03/29/10 www.freelivedoctor.com](https://image.slidesharecdn.com/basicprocessesofkidney-100329000619-phpapp01/85/Basic-Processes-Of-Kidney-1-320.jpg)
