Which of the following factors is responsible | vedclass

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(B) The formation of concentrated urine is primarily facilitated by the counter-current mechanism.This mechanism involves the maintenance of a high os

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Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys.

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(B) The formation of concentrated urine is primarily facilitated by the counter-current mechanism.This mechanism involves the maintenance of a high osmolarity gradient in the inner medullary interstitium of the kidneys.This gradient is created by the $NaCl$ and urea,which allows water to be reabsorbed from the collecting duct into the interstitium,thereby concentrating the urine.Antidiuretic hormone $(ADH)$ further enhances this process by increasing the water permeability of the collecting duct.

Which of the following factors is responsible for the formation of concentrated urine?

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