Definition
The 'central sulcus' is a prominent groove on the surface of the brain that separates the frontal and parietal lobes. Imagine it as a major dividing line in a city, separating the business district from the residential area. It's a significant landmark for neuroanatomists. Unlike smaller sulci, the central sulcus is deep and easily identifiable. It marks the boundary between areas responsible for motor control and sensory processing. The central sulcus is like a demilitarized zone between warring factions.