Which artery supplies blood to major speech areas such as Broca's and Wernicke's areas?

• A. Anterior Cerebral Artery
• B. Middle Cerebral Artery
• C. Posterior Cerebral Artery
• D. Vertebral Artery

Answer: (B)

Language centers are located on the lateral surface of the dominant hemisphere, and the middle cerebral artery supplies those regions. The area for speech production (Broca's area) sits in the inferior frontal gyrus, and the area for language comprehension (Wernicke's area) sits in the superior temporal gyrus. The MCA travels along the lateral convexity and, in the dominant hemisphere, its branches reach these exact regions—the superior division feeding frontal language areas and the inferior division feeding temporal language areas. This is why lesions in this artery commonly affect speech and language.

Other arteries have different territories: the anterior cerebral artery primarily supplies medial frontal and parietal areas, not the core language regions; the posterior cerebral artery supplies occipital and some medial temporal areas; the vertebral arteries feed the brainstem and cerebellum.