Which ions enter the vasa recta?

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Question

(B) The vasa recta plays a crucial role in the counter-current mechanism of the kidney. $NaCl$ is transported by the ascending limb of the loop of Hen

Vedclass · Accepted Answer

Sodium chloride and urea

Vedclass · Answer

(B) The vasa recta plays a crucial role in the counter-current mechanism of the kidney. $NaCl$ is transported by the ascending limb of the loop of Henle and is exchanged with the descending limb of the vasa recta. Similarly,urea enters the interstitium from the collecting duct and is transported into the ascending limb of the vasa recta. Therefore,both $NaCl$ and urea enter the vasa recta to maintain the concentration gradient in the renal medulla.

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The human kidneys produce urine that is approximately .......... times more concentrated than the initial filtrate.

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$R :$ The descending limb is impermeable to $Na^+$,while the ascending limb is impermeable to $H_2O$.

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