PATHOLOGY MCQ
URINARY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The loop of Henle can concentrate urine because of which one?
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The change from water permeability to impermeability along the loop allows this.
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It can actively pump water into the interstitial space.
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Its length allows it to do this easily as water leaks out along the length.
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It becomes more and more narrow, forcing water to exit.
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Explanation:
Detailed explanation-1: -Henle’s Loop 1.2). The thin descending limb, like the proximal tubule, is highly permeable for water (the channels are of aquaporin 1), whereas, beginning exactly at the turning point, the thin ascending limb is impermeable for water.
Detailed explanation-2: -If the ascending limb of the loop of Henle were permeable to water, this process would be impossible and the filtrate would not be concentrated in the collecting duct.
There is 1 question to complete.