Answer
Folds or convolutions of the cerebral cortical matter are called gyri; there are small folds, and large folds. Two of the large, important folds are the precentral gyrus, and the postcentral gyrus.
Work Step by Step
The precentral gyrus is located anterior to the central sulcus . It comprises the primary motor cortex of the cerebrum.
In a position posterior to the central sulcus, lies the postcentral gyrus; it incorporates the primary somatosensory cortex of the cerebrum.
