Neurology: anterior cerebral artery stroke: practice question

A General Medicine 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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General Medicine · Neurology: anterior cerebral artery stroke

Sample item

A patient after a stroke has weakness and sensory loss in the contralateral leg, with apathy and urinary incontinence. Which artery is involved?

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

The answer and the reasoning

B. Anterior cerebral artery

The ACA supplies the medial frontal and parietal lobes, including the leg area of the motor and sensory cortex. Frontal involvement causes abulia and incontinence. MCA infarcts affect the face and arm more.

Option by option

  • A. Posterior cerebral artery

    PCA causes visual field loss.

  • B. Anterior cerebral artery (correct)

    Correct. Leg predominant weakness with abulia indicates ACA.

  • C. Anterior choroidal artery

    Anterior choroidal artery causes hemiplegia with hemianopia and hemisensory loss.

  • D. Middle cerebral artery

    MCA affects face and arm more than leg.

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 General Medicine questions

Questions about this General Medicine question

What is the answer to this General Medicine question?

The best answer is B, Anterior cerebral artery. The ACA supplies the medial frontal and parietal lobes, including the leg area of the motor and sensory cortex.

Why is "Posterior cerebral artery" not the answer?

PCA causes visual field loss.

Why is "Anterior choroidal artery" not the answer?

Anterior choroidal artery causes hemiplegia with hemianopia and hemisensory loss.

Why is "Middle cerebral artery" not the answer?

MCA affects face and arm more than leg.

What concept does this question test?

It tests Neurology: anterior cerebral artery stroke in General Medicine. Frontal involvement causes abulia and incontinence. MCA infarcts affect the face and arm more.

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 Neurology: anterior cerebral artery stroke?

For each disease know the classic presentation, the best test, and the first-line treatment. Then use the flashcards and the other General Medicine 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.