Sensory 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 · Sensory physiology

Sample item

Which receptor adapts rapidly to detect vibration and changes in skin pressure?

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

The answer and the reasoning

D. Pacinian corpuscle

Pacinian corpuscles are rapidly adapting mechanoreceptors located deep in skin and connective tissue, specialized for high-frequency vibration detection.

Option by option

  • A. Merkel disc

    Merkel discs are slowly adapting receptors for edges and pressure.

  • B. Nociceptor

    Nociceptors signal potentially damaging stimuli.

  • C. Muscle spindle

    Muscle spindles detect stretch within skeletal muscle.

  • D. Pacinian corpuscle (correct)

    Correct: Pacinian corpuscles respond best to vibration.

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, Pacinian corpuscle. Pacinian corpuscles are rapidly adapting mechanoreceptors located deep in skin and connective tissue, specialized for high-frequency vibration detection.

Why is "Merkel disc" not the answer?

Merkel discs are slowly adapting receptors for edges and pressure.

Why is "Nociceptor" not the answer?

Nociceptors signal potentially damaging stimuli.

Why is "Muscle spindle" not the answer?

Muscle spindles detect stretch within skeletal muscle.

What concept does this question test?

It tests Sensory physiology in Physiology. The correct option holds because: Correct: Pacinian corpuscles respond best to vibration.

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 Sensory 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.