The term inferior precentral sulcus refers to a superficial feature of the frontal lobe of the human. Identified by dissection, it is a short groove located on the lateral surface, rostral and parallel to the central sulcus. It separates the precentral gyrus from the lower part of the middle frontal gyrus and the inferior frontal gyrus ( Ono-1990 ). It is not found in the macaque nor in the smooth cerebral cortex of the rat or mouse ( NeuroNames ).