part of part of cerebral cortex Brodmann (1909) area 46 http://upload.wikimedia.org/wikipedia/commons/c/cd/Brodmann_area_46.png middle frontal area 46 Brodmann area 46, or BA46, is part of the frontal cortex in the human brain. It is between BA10 and BA45. BA46 is known as middle frontal area 46. In the human it occupies approximately the middle third of the middle frontal gyrus and the most rostral portion of the inferior frontal gyrus. Brodmann area 46 roughly corresponds with the dorsolateral prefrontal cortex (DLPFC), although the borders of area 46 are based on cytoarchitecture rather than function. The DLPFC also encompasses part of granular frontal area 9, directly adjacent on the dorsal surface of the cortex. Cytoarchitecturally, BA46 is bounded dorsally by the granular frontal area 9, rostroventrally by the frontopolar area 10 and caudally by the triangular area 45 (Brodmann-1909). There is some discrepancy between the extent of BA8 (Brodmann-1905) and the same area as described by Walker (1940). area 46 of Brodmann area 46 B09-46 area frontalis media BA46 Brodmann area 46 area 46 of Brodmann-1909 FMA:68643 B09-46 UMLS:C1272512 SCTID:384806000 Brodmann area 46, middle frontal middle frontal area 46 UBERON:0006483 Wikipedia:Brodmann_area_46 Brodmann (1909) area 46 BIRNLEX:1778 neuronames:2105 Brodmann area