Which area of the frontal lobe functions as the motor speech area, responsible for speech production and articulation?

• A. Wernicke's area
• B. Frontal eye field
• C. Primary motor cortex
• D. Broca's

Answer: (D)

Motor speech relies on Broca's area, located in the inferior frontal gyrus of the dominant hemisphere (usually the left). It plans and coordinates the specific movements required to articulate words—controlling the lips, tongue, jaw, and vocal apparatus. When this region is disrupted, speech becomes halting and agrammatic, even though understanding may remain relatively intact. In contrast, Wernicke's area handles language comprehension, the primary motor cortex executes general voluntary movements, and the frontal eye field governs voluntary eye movements. So, the motor speech area for production and articulation is Broca's area.