MEDICAL
KIDNEY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The dscending limb is impermeable to water
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The ascending limb is permeable to water
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The ascending limb is impermeable to water
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None of the above
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Detailed explanation-1: -Final answer: The correct statement regarding Henle’s loop is that the ascending limb of the loop of Henle is impermeable to water.
Detailed explanation-2: -The thick ascending limb of Henle’s loop actively reabsorbs sodium chloride (NaCl) but is impermeable to water. Therefore this segment raises the osmolality of the interstitial fluid, thus generating medullary interstitial hypertonicity and a lumen-to-interstitium osmotic gradient.
Detailed explanation-3: -The thin ascending limb of loop of Henley is impermeable to water but permeable to Na+ and cl-. So as the filtrate passes through ascending limb, it’s osmolarity decreases.
Detailed explanation-4: -The descending loop of Henle is impermeable to water.