Brodmann area 6

Brodmann area 6
Brodmann area 6
Details
Identifiers
Latin	area frontalis agranularis
NeuroNames	1020
NeuroLex ID	birnlex_1737
FMA	68602
	Anatomical terms of neuroanatomy

Brodmann area 6 (BA6) is part of the frontal cortex in the human brain. Situated just anterior to the primary motor cortex (BA4), it is composed of the premotor cortex and, medially, the supplementary motor area (SMA). This large area of the frontal cortex is believed to play a role in planning complex, coordinated movements.

Brodmann area 6 is also called agranular frontal area 6 in humans because it lacks an internal granular cortical layer (layer IV). It is a subdivision of the cytoarchitecturally defined precentral region of cerebral cortex. In the human brain, it is located on the portions of the precentral gyrus that are not occupied by Brodmann area 4; furthermore, BA6 extends onto the caudal portions of the superior frontal and middle frontal gyri. It extends from the cingulate sulcus on the medial aspect of the hemisphere to the lateral sulcus on the lateral aspect. It is bounded rostrally by the granular frontal region and caudally by the gigantopyramidal area 4 (Brodmann, 1909).^[1]

^ This article incorporates text available under the CC BY 3.0 license. "BrainInfo". Archived from the original on 2012-09-05. Retrieved 2013-12-03.{{cite web}}: CS1 maint: bot: original URL status unknown (link)

[1] This article incorporates text available under the CC BY 3.0 license. "BrainInfo". Archived from the original on 2012-09-05. Retrieved 2013-12-03.{{cite web}}: CS1 maint: bot: original URL status unknown (link)

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