Autonomic pharmacology: practice question

A Pharmacology 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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Pharmacology · Autonomic pharmacology

Sample item

Which receptor is primarily responsible for slowing heart rate when stimulated?

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

The answer and the reasoning

C. Muscarinic M2 receptor

The key Autonomic pharmacology principle identifies Muscarinic M2 receptor as the best answer because it most directly accounts for the mechanism, use, or laboratory finding described.

Option by option

  • A. Alpha-1 receptor

    Alpha-1 receptor may have another clinical role but is not supported by this clue.

  • B. Nicotinic receptor

    Nicotinic receptor is inconsistent with the requested mechanism or identification.

  • C. Muscarinic M2 receptor (correct)

    Correct. Muscarinic M2 receptor matches the decisive principle in this item.

  • D. Beta-1 receptor

    Beta-1 receptor does not fit the stated autonomic pharmacology 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.

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Questions about this Pharmacology question

What is the answer to this Pharmacology question?

The best answer is C, Muscarinic M2 receptor. The key Autonomic pharmacology principle identifies Muscarinic M2 receptor as the best answer because it most directly accounts for the mechanism, use, or laboratory finding described.

Why is "Alpha-1 receptor" not the answer?

Alpha-1 receptor may have another clinical role but is not supported by this clue.

Why is "Nicotinic receptor" not the answer?

Nicotinic receptor is inconsistent with the requested mechanism or identification.

Why is "Beta-1 receptor" not the answer?

Beta-1 receptor does not fit the stated autonomic pharmacology relationship.

What concept does this question test?

It tests Autonomic pharmacology in Pharmacology. The correct option holds because: Correct. Muscarinic M2 receptor matches the decisive principle in this item.

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 pharmacology?

Learn drugs as classes, then the exception in each class that an examiner would pick. Then use the flashcards and the other Pharmacology 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.