Final answer:
The function of Broca's area is motor control of speech, while the supplementary speech area (associated with Wernicke's area) is important for speech comprehension. Broca's area is linked to expressive aphasia, while Wernicke's area is associated with receptive aphasia.
Step-by-step explanation:
Function of Broca's Area and Supplementary Speech Area
The correct option is b. Broca's area for motor control of speech; supplementary speech area for speech comprehension. Broca's area is responsible for the articulation and production of speech. It is located in the lateral aspect of the frontal lobe, just anterior to the region of the motor cortex associated with the head and neck. Patients with damage to Broca's area may suffer from expressive aphasia, characterized by compromised speech production, halting speech, and issues with grammar, known as non-fluency.
The supplementary speech area, often linked with Wernicke's area, is involved in the comprehension of language. Wernicke's area is found adjacent to the auditory association cortex at the end of the lateral sulcus, just anterior to the visual cortex. Damage to this area can result in receptive aphasia, where patients have trouble understanding spoken language and can speak fluently but without meaningful content.