Cardiovascular 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 · Cardiovascular physiology

Sample item

Cardiac output is the product of heart rate and what?

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

The answer and the reasoning

B. Stroke volume

The relevant Cardiovascular physiology principle makes Stroke volume the best answer because it directly explains the structure or physiological response in the stem.

Option by option

  • A. Ejection fraction only

    Ejection fraction only is associated with a different anatomical or physiological role.

  • B. Stroke volume (correct)

    Correct. Stroke volume directly follows from the core cardiovascular physiology relationship.

  • C. Systemic resistance

    Systemic resistance is not supported by the key clue provided in this item.

  • D. Blood pressure

    Blood pressure does not correspond to the structure or response being tested.

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.

More Physiology questions

Questions about this Physiology question

What is the answer to this Physiology question?

The best answer is B, Stroke volume. The relevant Cardiovascular physiology principle makes Stroke volume the best answer because it directly explains the structure or physiological response in the stem.

Why is "Ejection fraction only" not the answer?

Ejection fraction only is associated with a different anatomical or physiological role.

Why is "Systemic resistance" not the answer?

Systemic resistance is not supported by the key clue provided in this item.

Why is "Blood pressure" not the answer?

Blood pressure does not correspond to the structure or response being tested.

What concept does this question test?

It tests Cardiovascular physiology in Physiology. The correct option holds because: Correct. Stroke volume directly follows from the core cardiovascular physiology relationship.

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 Cardiovascular 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.