VASCULAR
THE NEPHRON
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which portion of the nephron active pumps out Na+, with Cl-passively following, to create a salty medulla?
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Proximal convoluted tubule
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Ascending loop of Henle
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Distal convoluted tubule
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Both proximal convoluted tubule and ascending loop of Henle
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Explanation:
Detailed explanation-1: -DCT sodium reabsorption is also an active procedure but is subject to hormonal control, i.e. conditional response. So, the correct answer is ‘Proximal convoluted tubules’. Additional information: The nephron section that lies immediately downstream of the macula densa is the distal convoluted tubule.
Detailed explanation-2: -Proximal convoluted tubule is involved in active reabsorption of sodium. The majority (about 70%) of sodium is reabsorbed here, into the cytosol of the epithelial cells of the nephron.
There is 1 question to complete.