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Brodmann area 47

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Title: Brodmann area 47  
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Subject: Brodmann area 45, Orbital part of inferior frontal gyrus, Orbitofrontal cortex, Brodmann area 34, Brodmann area 16
Collection: Brodmann Areas
Publisher: World Heritage Encyclopedia

Brodmann area 47

Brodmann area 47
Latin Area orbitalis
NeuroLex ID Brodmann area 47
Anatomical terms of neuroanatomy

Brodmann area 47, or BA47, is part of the frontal cortex in the human brain. Curving from the lateral surface of the frontal lobe into the ventral (orbital) frontal cortex. It is below areas BA10 and BA45, and beside BA11. This cytoarchitectonic region most closely corresponds to the gyral region "pars orbitalis", although these regions are not equivalent. Pars orbitalis is not based on cytoarchitectonic distinctions, and rather is defined according to gross anatomical landmarks. Despite a clear distinction, these two terms are often used liberally in peer-reviewed research journals.

BA47 is also known as orbital area 47. In the human, on the orbital surface it surrounds the caudal portion of the orbital sulcus (H) from which it extends laterally into the orbital part of inferior frontal gyrus (H). Cytoarchitectonically it is bounded caudally by the triangular area 45, medially by the prefrontal area 11 of Brodmann-1909, and rostrally by the frontopolar area 10 (Brodmann-1909).

It incorporates the region that Brodmann identified as "Area 12" in the monkey, and therefore, following the suggestion of Michael Petrides, some contemporary neuroscientists refer to the region as "BA47/12."

BA47 has been implicated in the processing of syntax in oral and sign languages, musical syntax, and semantic aspects of language.


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  • See also 2
  • Further reading 3
  • External links 4


See also

Further reading

  • Petrides, M; Pandya, DN (2002). "Comparative cytoarchitectonic analysis of the human and the macaque ventrolateral prefrontal cortex and corticocortical connection patterns in the monkey".  

External links

  • For Neuroanatomy of this area visit BrainInfo

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