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.

Try it

Physiology · Sleep physiology

Sample item

Which 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

A. REM sleep

REM sleep is characterized by rapid eye movements, vivid dreaming, cortical activation, and skeletal muscle atonia apart from essential respiratory and ocular muscles.

Option by option

  • A. REM sleep (correct)

    Correct: REM sleep is associated with vivid dreaming and rapid eye movements.

  • B. N3 sleep

    N3 is slow-wave deep non-REM sleep.

  • C. N1 sleep

    N1 is light transitional sleep.

  • D. N2 sleep

    N2 is characterized by sleep spindles and K complexes.

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 A, REM sleep. REM sleep is characterized by rapid eye movements, vivid dreaming, cortical activation, and skeletal muscle atonia apart from essential respiratory and ocular muscles.

Why is "N3 sleep" not the answer?

N3 is slow-wave deep non-REM sleep.

Why is "N1 sleep" not the answer?

N1 is light transitional sleep.

Why is "N2 sleep" not the answer?

N2 is characterized by sleep spindles and K complexes.

What concept does this question test?

It tests Sleep physiology in Physiology. The correct option holds because: Correct: REM sleep is associated with vivid dreaming and rapid eye movements.

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.