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

What vessel arches over the root of the right lung?

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

The answer and the reasoning

C. Azygos vein

The azygos vein arches superiorly over the right lung root before entering the superior vena cava, a key relation in thoracic anatomy.

Option by option

  • A. Thoracic duct

    Thoracic duct ascends in the posterior mediastinum.

  • B. Left brachiocephalic vein

    Left brachiocephalic vein crosses the superior mediastinum.

  • C. Azygos vein (correct)

    Correct: azygos arch passes over the right lung root.

  • D. Pulmonary vein

    Pulmonary veins enter the left atrium at the lung root.

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, Azygos vein. The azygos vein arches superiorly over the right lung root before entering the superior vena cava, a key relation in thoracic anatomy.

Why is "Thoracic duct" not the answer?

Thoracic duct ascends in the posterior mediastinum.

Why is "Left brachiocephalic vein" not the answer?

Left brachiocephalic vein crosses the superior mediastinum.

Why is "Pulmonary vein" not the answer?

Pulmonary veins enter the left atrium at the lung root.

What concept does this question test?

It tests Thorax in Anatomy. The correct option holds because: Correct: azygos arch passes over the right lung root.

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.