Sleep 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 · Sleep physiology

Sample item

Which sleep stage is associated with vivid dreaming and rapid eye movements?

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

The answer and the reasoning

D. REM sleep

The relevant Sleep physiology principle makes REM sleep the best answer because it directly explains the structure or physiological response in the stem.

Option by option

  • A. N3 sleep

    N3 sleep is not supported by the key clue provided in this item.

  • B. N2 sleep

    N2 sleep is associated with a different anatomical or physiological role.

  • C. N1 sleep

    N1 sleep does not correspond to the structure or response being tested.

  • D. REM sleep (correct)

    Correct. REM sleep directly follows from the core sleep physiology relationship.

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 D, REM sleep. The relevant Sleep physiology principle makes REM sleep the best answer because it directly explains the structure or physiological response in the stem.

Why is "N3 sleep" not the answer?

N3 sleep is not supported by the key clue provided in this item.

Why is "N2 sleep" not the answer?

N2 sleep is associated with a different anatomical or physiological role.

Why is "N1 sleep" not the answer?

N1 sleep does not correspond to the structure or response being tested.

What concept does this question test?

It tests Sleep physiology in Physiology. The correct option holds because: Correct. REM sleep directly follows from the core sleep 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 Sleep 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.