VASCULAR
THE NEPHRON
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The part of the kidney that is least permeable to water is the walls of the ____
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ascending limb of Loop of Henle
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Proximal convoluted tubule
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Distal convoluted tubule
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Descending limb of Loop of Henle
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Explanation:
Detailed explanation-1: -The medullary thick ascending limb is impermeable to water. Thus, the majority of reabsorption through active transport takes place here. It helps in the symport/transport of Na-K-Cl ions.
Detailed explanation-2: -Clay is the most porous sediment but is the least permeable. Clay usually acts as an aquitard, impeding the flow of water. Gravel and sand are both porous and permeable, making them good aquifer materials. Gravel has the highest permeability.
Detailed explanation-3: -Descending limb is the first part of the loop of Henle. It helps to maintain the concentration of urine. It is highly permeable to water thus water is readily reabsorbed from the descending limb by osmosis.
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