Exercise 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 · Exercise physiology

Sample item

What happens to cardiac output during moderate exercise?

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

The answer and the reasoning

A. It increases

Cardiac output rises during exercise through increased heart rate and stroke volume, improving oxygen delivery to active skeletal muscle.

Option by option

  • A. It increases (correct)

    Correct: exercise increases cardiac output.

  • B. It becomes independent of heart rate

    Heart rate remains a major determinant of output.

  • C. It falls to zero

    Cardiac output cannot fall to zero in a living exercising person.

  • D. It remains fixed

    It does not remain fixed during moderate exercise.

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 A, It increases. Cardiac output rises during exercise through increased heart rate and stroke volume, improving oxygen delivery to active skeletal muscle.

Why is "It becomes independent of heart rate" not the answer?

Heart rate remains a major determinant of output.

Why is "It falls to zero" not the answer?

Cardiac output cannot fall to zero in a living exercising person.

Why is "It remains fixed" not the answer?

It does not remain fixed during moderate exercise.

What concept does this question test?

It tests Exercise physiology in Physiology. The correct option holds because: Correct: exercise increases cardiac output.

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 Exercise 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.