Uberon definition : The term area 23 of Brodmann-1909 refers to a subdivision of the cerebral cortex of
the guenon defined on the basis of cytoarchitecture. Brodmann regarded it as topographically
and cytoarchitecturally homologous to the combined ventral posterior cingulate area
23 and dorsal posterior cingulate area 31 of the human (Brodmann-1909). Distinctive
Features (Brodmann-1905): the cortex is relatively thin; smaller cells predominate;
the cell density of the multiform layer (VI) is great, producing a distinct boundary
with the subcortical white matter; the internal granular layer (IV) is rather well
developed; the internal pyramidal layer (V) contains a dense population of round,
medium-sized ganglion cells concentrated at the border with layer IV; layers V and
VI are narrow with a distinct mutual boundary.nn* Definition Source NeuroNames;
Uberon synonym : area 23 of Brodmann; posterior cingulate area; granular cingulate area; area 23 of Brodmann-1909; B09-23; Brodmann area 23, ventral posterior cingulate; Brodmann area 23;
Uberon related term : brodmann's area 23; ventral posterior cingulate area; area 23 of Brodmann (guenon); BA23;
The term area 23 of Brodmann-1909 refers to a subdivision of the cerebral cortex of
the guenon defined on the basis of cytoarchitecture. Brodmann regarded it as topographically
and cytoarchitecturally homologous to the combined ventral posterior cingulate area
23 and dorsal posterior cingulate area 31 of the human (Brodmann-1909). Distinctive
Features (Brodmann-1905): the cortex is relatively thin; smaller cells predominate;
the cell density of the multiform layer (VI) is great, producing a distinct boundary
with the subcortical white matter; the internal granular layer (IV) is rather well
developed; the internal pyramidal layer (V) contains a dense population of round,
medium-sized ganglion cells concentrated at the border with layer IV; layers V and
VI are narrow with a distinct mutual boundary.nn* Definition Source NeuroNames