Brodmann area 23
| Brodmann area 23 | |
|---|---|
 | |
 Medial surface of human brain. BA23 is shown in green. | |
| Details | |
| Identifiers | |
| Latin | area cingularis posterior ventralis |
| NeuroNames | 1018 |
| NeuroLex ID | birnlex_1754 |
| FMA | 68620 |
| Anatomical terms of neuroanatomy | |
Brodmann area 23 (BA23) is a region in the
callosal sulcus and the cingulate sulcus
.
Human
This area is also known as ventral posterior cingulate area 23. It is a subdivision of the
retrosplenial region
(Brodmann-1909).
Guenon
Brodmann area 23 is a subdivision of the cerebral cortex of the
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.
Macaque
In the macaque the researchers Bonin and Bailey describe an area they term LC which is in agreement with Brodmann area 23. The LC area
- covers the posterior part of the cingulate gyrus and extends into the cingulate sulcus where, on the inferior wall, it is continuous with the frontal cortex FDL.[1]
Subdivisions
The area has been subdivided further: In the
Macaca fascicularis) the following subdivisions have been suggested:[2]
- 23i (internal)
- 23e (external)
- 23v (ventral), the most caudalventral (inferior) portion and with most highly developed layer IV.
Another suggestion is for
Macaca mulatta)[3]
- 23a, adjacent to the callosal sulcus thus closest to Brodmann area 30.
- 23b
- 23c
Further division of 23b is.[4]
- pv23b, posteroventral part for 23b, main thalamic projections from anterior nuclei.
- d23b, dorsal part of 23b, weak connections from the anterior nuclei.
See also
References
- ^ Gerhardt von Bonin, Percival Bailey, The Neocortex of Macaca Mulatta, 1947.
- Journal of Comparative Neurology, 426:339+
- Journal of Comparative Neurology, 262(2):256-270.
- ^ H. Shibata, M. Yukie, "Differential thalamic connections of the posteroventral and dorsal posterior cingulate gyrus in the monkey". European Journal of Neuroscience.
External links
Wikimedia Commons has media related to Brodmann area 23.
- ancil-1057 at NeuroNames
- Brodmann area 23 in the Brede Database at the Technical University of Denmark