Neuropsychology Practice Test

The supramarginal gyrus is part of the inferior parietal lobule that wraps around the posterior end of the Sylvian (lateral) fissure, and its cytoarchitecture corresponds to Brodmann area 40. In contrast, the angular gyrus sits in the same general region but is Brodmann area 39, located a bit posterior to the supramarginal gyrus. Brodmann area 44 lies in the inferior frontal gyrus (Broca’s area) and is tied to language production, while area 17 is the primary visual cortex in the occipital lobe. So, the supramarginal gyrus maps to Brodmann area 40.