Renal physiology: practice question

A Physiology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Physiology · Renal physiology

Sample item

What segment reabsorbs the greatest amount of filtered sodium and water?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

D. Proximal tubule

The core Renal physiology relationship supports Proximal tubule; it is the response that directly accounts for the structural location or physiological change described.

Option by option

  • A. Renal pelvis

    Renal pelvis is not consistent with the key finding in the stem.

  • B. Distal tubule

    Distal tubule does not fulfill the structural or functional role requested.

  • C. Collecting duct

    Collecting duct is associated with a different renal physiology relationship.

  • D. Proximal tubule (correct)

    Correct. Proximal tubule is directly supported by the central clue.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

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Questions about this Physiology question

What is the answer to this Physiology question?

The best answer is D, Proximal tubule. The core Renal physiology relationship supports Proximal tubule; it is the response that directly accounts for the structural location or physiological change described.

Why is "Renal pelvis" not the answer?

Renal pelvis is not consistent with the key finding in the stem.

Why is "Distal tubule" not the answer?

Distal tubule does not fulfill the structural or functional role requested.

Why is "Collecting duct" not the answer?

Collecting duct is associated with a different renal physiology relationship.

What concept does this question test?

It tests Renal physiology in Physiology. The correct option holds because: Correct. Proximal tubule is directly supported by the central clue.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Renal physiology?

For each system, sketch the key graph (pressure–volume loop, oxygen dissociation curve, nephron handling) and explain it aloud. Then use the flashcards and the other Physiology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.