The mechanism for producing a concentrated urine involves
A) a high concentration of NACl in the interstitial fluid that surrounds the collecting ducts.
B) the secretion of antidiuretic hormone ADH) by the neurohypophysis.
C) aquaporins being inserted into the membranes of the collecting duct cells.
D) A and C only
E) A, B, and C

Question

Quizplus · Accepted Answer

The production of concentrated urine involves all three mechanisms: a high concentration of NaCl in the interstitial fluid (A), secretion of ADH which increases water reabsorption (B), and insertion of aquaporins in the collecting duct cells to facilitate water reabsorption (C).

The Mechanism for Producing a Concentrated Urine Involves