Brodmann area 26 is the name for a small part of the

brain A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a v ...

Human

In the human this area is called ectosplenial area 26. It is a

cytoarchitecturally Cytoarchitecture (Ancient Greek language, Greek ''wiktionary:κύτος#Ancient_Greek, κύτος''= "cell" + ''wiktionary:ἀρχιτέκτων#Ancient_Greek, ἀρχιτεκτονική''= "architecture"), also known as cytoarchitectonics, is th ...

defined portion of the

retrosplenial region The retrosplenial cortex (RSC) is a cortical area in the brain comprising Brodmann areas 29 and 30. It is secondary association cortex, making connections with numerous other brain regions. The region's name refers to its anatomical location imm ...

of the

cerebral cortex The cerebral cortex, also known as the cerebral mantle, is the outer layer of neural tissue of the cerebrum of the brain in humans and other mammals. The cerebral cortex mostly consists of the six-layered neocortex, with just 10% consisting of ...

. It is a narrow band located in the

isthmus of cingulate gyrus The cingulate gyrus commences below the rostrum of the corpus callosum, curves around in front of the genu, extends along the upper surface of the body, and finally turns downward behind the splenium, where it is connected by a narrow isthmus with ...

adjacent to the fasciolar gyrus internally. It is bounded externally by the

granular retrolimbic area 29 Brodmann area 29, also known as granular retrolimbic area 29 or granular retrosplenial cortex, is a cytoarchitecturally defined portion of the retrosplenial region of the cerebral cortex. In the human it is a narrow band located in the isthmus ...

(Brodmann-1909).

Guenon

In the

guenon The guenons (, ) are Old World monkeys of the genus ''Cercopithecus'' (). Not all members of this genus have the word "guenon" in their common names; also, because of changes in scientific classification, some monkeys in other genera may have co ...

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 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 area 30, also known as agranular retrolimbic area 30, is a subdivision of the cytoarchitecturally defined retrosplenial region of the cerebral cortex. In the human it is located in the isthmus of cingulate gyrus. Cytoarchitecturally it ...

(Brodmann-1909). Distinctive features (Brodmann-1905): thin cortex; distinct but narrow layers.

External links

BrainInfo
with information about the neuroanatomy of Brodmann area 26 {{Prosencephalon 26 Medial surface of cerebral hemisphere

Human

Guenon

See also

External links