An individual suffers a cerebrovascular accident (CVA) or stroke, which disrupts the blood supply to the medial area of the frontal lobe. This disruption is most likely due to blockage of which one of the following?
A. Anterior communicating artery
B. Anterior cerebral artery
C. Middle cerebral artery
D. Posterior cerebral artery
ANS: B
Rationale: The anterior cerebral arteries provide blood flow to the medial aspects of the frontal and parietal lobes. The anterior communicating artery joins these arteries. In addition, the middle cerebral artery supplies much of the lateral hemispheres, and the posterior cerebral artery supplies the occipital lobe and medial and inferior temporal lobe.
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