Unformatted text preview: osmolarity. 3. Understand how the vasa recta works to prevent washout of the medullary osmolytes. 4. Outline the regulatory pathways controlling the ECF volume. III. Sample Problems: 1. How does an increase in ADH lead to the retention of water? 2. What is the main energy source for establishing the osmotic gradient between the medulla and cortex? 3. How would a decrease in GFR affect the magnitude of the osmotic gradient in the medulla? 4. Why do uncontrolled diabetics produce large volumes of dilute urine? 5. What is diabetes insipidus? file:///C|/WINWORD/COURSES/31107/Lec35-07.htm8/15/2007 10:26:55 AM...
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- Fall '08
- Physiology, loop of Henle, Vasa Recta, urine concentration, countercurrent multiplier increases, Concentrated Urine Production, countercurrent exchange mechanism