The term area 5 of Brodmann (human) refers to a subdivision of the cytoarchitecturally defined parietal region of cerebral cortex. In the human it occupies the superior parietal lobule and a portion of the postcentral gyrus, particularly on the medial aspect of the hemisphere. It is bounded approximately by the cingulate sulcus on the medial aspect of the hemisphere and by the superior postcentral sulcus - obsolete on the lateral aspect. Cytoarchitecturally it is bounded by the area 2 of Brodmann (human), the area 7 of Brodmann (human) and on the medial bank of the hemisphere by the area 4 of Brodmann (human) and the area 31 of Brodmann (human) ( Brodmann-1909 ).