Which of the following statements about kidney function is not correct?help thanks!
Which of the following statements about kidney function is not correct?
A. The glomerulus is involved in size-selective filtration of the blood
B. The loop of Henle acts as a countercurrent exchanger, so no energy is required to maintain the osmotic gradient
C. the thin ascending limb of the loop of Henle is highly permeable to salt
D. the descending limb of the loop of Henle is highly permeable to water
E. reabsorption of water and solutes takes place primarily in the proximal tubule
actually explain please why the "one" is not correct. thanks alot!
Posted by Rynn-chan
The answer is B.
The loop of Henle is the countercurrent multiplier (a system that uses energy to create a concentration gradient) while the vasa recta is the countercurrent exchanger (a mechanism of exchanging some property of a flowing fluid to another across a semipermeable membrane. The fluid should flow in the opposite directions. In this case, blood flow in vasa recta is opposite to the direction of filtrate flow in the loop of Henle.
Hope it helps.
Orignal From: Which of the following statements about kidney function is not correct?
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