What is "central sulcus"

n. (context anatomy English) A fissure in the cerebral cortex of primates; it separates the parietal lobe from the frontal lobe

n. a brain fissure extending upward on the lateral surface of both hemispheres; separates the frontal and parietal lobes [syn: fissure of Rolando, Rolando's fissure, sulcus centralis]

The central sulcus is a sulcus, or fold, in the cerebral cortex in the brains of vertebrates. Also called the central fissure, it was originally called the fissure of Rolando or the Rolandic fissure, after Luigi Rolando. It is sometimes confused with the medial longitudinal fissure.

The central sulcus is a prominent landmark of the brain, separating the parietal lobe from the frontal lobe and the primary motor cortex from the primary somatosensory cortex.