Which MCA segment is known as the opercular segments?

Which MCA segment is known as the opercular segments?

• A. M1
• B. M2
• C. M3
• D. M4

Answer: (C)

Opercular segments are the MCA branches that run along the Sylvian fissure over the opercula of the frontal, parietal, and temporal lobes. These segments supply the opercular cortex—the parts that cover and form the opercular surfaces around the insula. This distinguishes them from the insular branches (which stay on the insula itself) and from the cortical branches on the lateral surface further away from the Sylvian fissure. So the opercular segments are the MCA branches that specifically course over the opercula, i.e., the opercular portion of the MCA.

Opercular segments are the MCA branches that run along the Sylvian fissure over the opercula of the frontal, parietal, and temporal lobes. These segments supply the opercular cortex—the parts that cover and form the opercular surfaces around the insula. This distinguishes them from the insular branches (which stay on the insula itself) and from the cortical branches on the lateral surface further away from the Sylvian fissure. So the opercular segments are the MCA branches that specifically course over the opercula, i.e., the opercular portion of the MCA.