Brodmann area 7 is part of the parietal cortex in the human brain. Situated posterior to the primary somatosensory cortex (Brodmann areas 1, 2 and 3), and superior to visual cortices (Brodmann areas 17, 18 and 19), this region is believed to play in visuo-motor coordination (e.g., in reaching to grasp an object).
Brodmann area 7 is a subdivision of the cytoarchitecturally defined parietal region of cerebral cortex in the guenon. It occupies most of the parietal lobe excluding the postcentral gyrus and superior parietal lobule. Brodmann-1909 considered it topologically homologous to the combined superior parietal area 7, the supramarginal area 40 (H) and the angular area 39 (H) of the human. Cytoarchitecurally he regarded it as "a still undifferentiated precursor zone for all parietal areas (apart from area 5)" (Garey-1999). Distinctive features (Brodmann-1905): in area 7 compared to Brodmann area 5-1909, large ganglion cells are absent from the internal pyramidal layer (V); the pyramidal cells of the external pyramidal layer (III) sublayer 3b are, on average, larger; the multiform layer (VI) is denser and narrower and more sharply bounded by subcortical white matter.
- Brodmann area 7 at BrainInfo.
|Telencephalon (cerebrum, cerebral cortex, cerebral hemispheres) - edit|
frontal lobe: precentral gyrus (primary motor cortex, 4), precentral sulcus, superior frontal gyrus (6, 8), middle frontal gyrus (46), inferior frontal gyrus (Broca's area, 44-pars opercularis, 45-pars triangularis), prefrontal cortex (orbitofrontal cortex, 9, 10, 11, 12, 47)
temporal lobe: transverse temporal gyrus (41-42-primary auditory cortex), superior temporal gyrus (38, 22-Wernicke's area), middle temporal gyrus (21), inferior temporal gyrus (20), fusiform gyrus (36, 37)
limbic lobe/fornicate gyrus: cingulate cortex/cingulate gyrus, anterior cingulate (24, 32, 33), posterior cingulate (23, 31),
Some categorizations are approximations, and some Brodmann areas span gyri.
|This page uses Creative Commons Licensed content from Wikipedia (view authors).|