Autonomic 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 · Autonomic physiology

Sample item

What is the effect of parasympathetic stimulation on the gastrointestinal tract?

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

The answer and the reasoning

B. Increase motility and secretion

Parasympathetic activity generally increases gastrointestinal smooth-muscle activity and glandular secretion while relaxing many sphincters.

Option by option

  • A. Constrict bronchioles less

    It constricts rather than relaxes bronchi.

  • B. Increase motility and secretion (correct)

    Correct: parasympathetic system supports digestion.

  • C. Dilate pupils

    Pupil dilation is sympathetic.

  • D. Decrease salivary secretion

    It increases rather than decreases salivation.

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 B, Increase motility and secretion. Parasympathetic activity generally increases gastrointestinal smooth-muscle activity and glandular secretion while relaxing many sphincters.

Why is "Constrict bronchioles less" not the answer?

It constricts rather than relaxes bronchi.

Why is "Dilate pupils" not the answer?

Pupil dilation is sympathetic.

Why is "Decrease salivary secretion" not the answer?

It increases rather than decreases salivation.

What concept does this question test?

It tests Autonomic physiology in Physiology. The correct option holds because: Correct: parasympathetic system supports digestion.

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 Autonomic 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.