In the human this area is called ectosplenial area 26. It is a cytoarchitecturally defined portion of the retrosplenial region of the cerebral cortex. It is a narrow band located in the isthmus of cingulate gyrus adjacent to the fasciolar gyrus internally. It is bounded externally by the granular retrolimbic area 29 (Brodmann-1909).
In the guenon Brodmann area 26 is a subdivision of the cerebral cortex defined on the basis of cytoarchitecture. The smallest of Brodmann's cortical areas in the monkey, it represents cortex that is less differentiated and relatively smaller in monkey and human than in other species. Brodmann regarded it as topographically and cytoarchitecturally homologous to the combined human ectosplenial area 26, granular retrolimbic area 29 and agranular retrolimbic area 30 (Brodmann-1909). Distinctive features (Brodmann-1905): thin cortex; distinct but narrow layers.
- For Neuroanatomy of Brodmann area 26 visit 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.
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