INBDE (Integrated National Board Dental Examination) Practice Exam

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Which artery supplies medial portions of the frontal and parietal lobes?

ACA
MCA
Pulmonary Artery
Carotid Artery

The correct answer is: ACA

The anterior cerebral artery (ACA) is responsible for supplying blood to the medial (inner) portions of the frontal and parietal lobes of the brain. The middle cerebral artery (MCA) supplies the lateral (outer) portions of the frontal and parietal lobes. The pulmonary artery is a blood vessel that carries blood from the heart to the lungs and is not involved in supplying blood to the brain. The carotid artery supplies blood to the brain, but it primarily provides blood to the temporal lobes and portions of the frontal lobe, not the parietal lobe. Therefore, the correct option is ACA as it specifically supplies the medial portions of the frontal and parietal lobes.