The Primary Somatosensory Area and the Primary Motor Area Are

Question

The primary somatosensory area and the primary motor area are separated by
A) Broca's area.
B) the central sulcus.
C) the pia mater.
D) the longitudinal fissure.

Accepted Answer

The primary somatosensory area and the primary motor area are separated by the central sulcus, also known as the fissure of Rolando. This sulcus runs in a roughly horizontal direction across the top of the brain, separating the parietal lobe (where the somatosensory cortex is located) from the frontal lobe (where the motor cortex is located).