Which MCA segment comprises the opercular segments?

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Explore the Hemispheres 3.0 Level I Brain Anatomy and Physiology Test. Study with detailed questions, answers, and hints. Enhance your knowledge and boost your preparation for success!

Multiple Choice

Which MCA segment comprises the opercular segments?

Explanation:
The parts of the middle cerebral artery are named by where they run along the cerebral surface. After the trunk (M1), the MCA gives off insular branches inside the Sylvian fissure (M2) and then continues over the opercula of the frontal, parietal, and temporal lobes—that portion is the opercular segment (M3). The branches on the outer lateral surface of the brain are the M4 segments. So the opercular segments are the M3 part of the MCA, which is why that option is correct.

The parts of the middle cerebral artery are named by where they run along the cerebral surface. After the trunk (M1), the MCA gives off insular branches inside the Sylvian fissure (M2) and then continues over the opercula of the frontal, parietal, and temporal lobes—that portion is the opercular segment (M3). The branches on the outer lateral surface of the brain are the M4 segments. So the opercular segments are the M3 part of the MCA, which is why that option is correct.

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