Q:

In the nephron, the osmolality of fluid in the

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In the nephron, the osmolality of fluid in the.


  1. Tip of the loop of Henle is less than that of plasma.
  2. Bowman’s capsules is less than that in the distal tubules.
  3. Collecting duct rises when vasopressin is being secreted.
  4. Proximal convoluted tubule rises along its length.
  5. Medullary interstitium can exceed one osmole per litre.

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A. False This fluid is hypertonic because of countercurrent concentration.

B. False Distal tubular fluid is hypotonic.

C. True Vasopressin (ADH) promotes water, but not salt, reabsorption in collecting ducts.

D. False The fluid remains isotonic with plasma.

E. True It can be about four times that of plasma.

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