Thorax: practice question

A Anatomy 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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Anatomy · Thorax

Sample item

Which nerve provides motor supply to the diaphragm?

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

The answer and the reasoning

C. Phrenic nerve

The phrenic nerve arises mainly from C3 to C5 and supplies the diaphragm, making it essential for normal ventilatory movement.

Option by option

  • A. Vagus nerve

    Vagus nerve supplies parasympathetic thoracic viscera.

  • B. Recurrent laryngeal nerve

    Recurrent laryngeal nerve supplies most intrinsic laryngeal muscles.

  • C. Phrenic nerve (correct)

    Correct: phrenic nerve is the diaphragm's motor nerve.

  • D. Intercostobrachial nerve

    Intercostobrachial nerve supplies axillary skin sensation.

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 Anatomy questions

Questions about this Anatomy question

What is the answer to this Anatomy question?

The best answer is C, Phrenic nerve. The phrenic nerve arises mainly from C3 to C5 and supplies the diaphragm, making it essential for normal ventilatory movement.

Why is "Vagus nerve" not the answer?

Vagus nerve supplies parasympathetic thoracic viscera.

Why is "Recurrent laryngeal nerve" not the answer?

Recurrent laryngeal nerve supplies most intrinsic laryngeal muscles.

Why is "Intercostobrachial nerve" not the answer?

Intercostobrachial nerve supplies axillary skin sensation.

What concept does this question test?

It tests Thorax in Anatomy. The correct option holds because: Correct: phrenic nerve is the diaphragm's motor nerve.

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 Thorax?

Learn every nerve by its route, its muscles and what a lesion looks like at the bedside. That one habit answers a large share of questions. Then use the flashcards and the other Anatomy 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.