Brodmann area 43
Encyclopedia
Brodmann area 43 is a subdivision of the cerebral cortex of the guenon
Guenon
The guenons are the genus Cercopithecus of Old World monkeys. Not all the members of this genus have the word "guenon" in their common names, and because of changes in scientific classification, some monkeys in other genera may have common names that do include the word "guenon"...

 defined on the basis of cytoarchitecture. It was described (but not labeled) on the map of cortical areas in Brodmann-1909, and it was regarded as cytoarchitecturally homologous
Homology (biology)
Homology forms the basis of organization for comparative biology. In 1843, Richard Owen defined homology as "the same organ in different animals under every variety of form and function". Organs as different as a bat's wing, a seal's flipper, a cat's paw and a human hand have a common underlying...

 to area 30 of Mauss in 1908 in the guenon and subcentral area 43 of the human (Brodmann-1909). The Vogts found no distinctive architectonic
Architectonic
Architectonic may mean:*pertaining to architecture, or suggesting the qualities of architecture*in Aristotelianism, as well as Kantianism, systematization of all knowledge...

 area of the corresponding location in the guenon (Vogts-1919).

Subcentral Area 43

In the human subcentral area 43, a subdivision of the cytoarchitecturally is defined in the postcentral region of cerebral cortex
Cerebral cortex
The cerebral cortex is a sheet of neural tissue that is outermost to the cerebrum of the mammalian brain. It plays a key role in memory, attention, perceptual awareness, thought, language, and consciousness. It is constituted of up to six horizontal layers, each of which has a different...

. It occupies the postcentral gyrus
Postcentral gyrus
The lateral postcentral gyrus is a prominent structure in the parietal lobe of the human brain and an important landmark. It is the location of primary somatosensory cortex, the main sensory receptive area for the sense of touch...

 and the precentral gyrus between the ventrolateral extreme of the central sulcus
Central sulcus
-External links:* via the Neuroscience Information Framework...

 and the depth of the lateral sulcus
Lateral sulcus
-External links:* * * http://www.uams.edu/radiology/education/residency/diagnostic/pdf/sylvian_cistern_RSNA2003.pdf...

 at the insula
Insular cortex
In each hemisphere of the mammalian brain the insular cortex is a portion of the cerebral cortex folded deep within the lateral sulcus between the temporal lobe and the frontal lobe. The cortical area overlying it towards the lateral surface of the brain is the operculum...

. Its rostral and caudal borders are approximated by the anterior subcentral sulcus (H) and the posterior subcentral sulcus respectively. Cytoarchitecturally it is bounded rostrally by the agranular frontal area 6 and caudally, for the most part, by the caudal postcentral area 2 and the supramarginal area 40 (H) (Brodmann-1909). One of the functions is as the "gustatory cortical area".

External links

  • For Neuroanatomy of the subcentral area 43 visit BrainInfo
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