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Brodmann (1909) area 20

Name: Brodmann (1909) area 20
Synonym(s): Area temporalis inferior, inferior temporal, Brodmann area 20, area 20 of Brodmann-1909, Brodmann.20
Abbreviation: B09-20
Super-category: Brodmann partition scheme region
*Id: birnlex_1751
Link to OWL / RDF: Download this content as OWL/RDF
Neuronames ID ( what's this?): 1053


  • Externally Sourced Definition: The term area 20 of Brodmann-1909 refers to a subdivision of the cerebral cortex of the guenon defined on the basis of cytoarchitecture. It is cytoarchitecturally homologous to the inferior temporal area 20 of the human (Brodmann-1909). Distinctive features (Brodmann-1905): area 20 is similar to area 19 of Brodmann-1909 in the relative abundance of small cell types relative to the number of larger pyramidal cells; a very dense, wide internal granular layer (IV) composed almost exclusively of granule cells, as in area 18 of Brodmann-1909; a broad, clear internal pyramidal layer (V) with few cells; and a distinct multiform layer (VI). The major differences from areas 18 and 19 are somewhat lesser cell density; absence of a division of the external pyramidal layer (III) into sublayers 3a and 3b; layer V is more clearly distinguished from layer VI and, on average, has a greater density of pyramidal ganglion cells than in the other areas; layer VI is wider, more diffuse and has fewer cells that are concentrated in the outer part of the layer to produce a denser sublayer 6a and a less dense sublayer 6b.
  • Abbreviation Source: SumsDB_abbrevSource

Contributors

Ayslinn, Nifbot2, Slarson



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*Note: Neurolex imports many terms and their ids from existing community ontologies, e.g., the Gene Ontology. Neurolex, however, is a dynamic site and any content beyond the identifier should not be presumed to reflect the content or views of the source ontology. Users should consult with the authoritative source for each ontology for current information.

Facts about Brodmann (1909) area 20RDF feed
AbbrevB09-20  +
AbbrevSourceSumsDB_abbrevSource  +
Created2 October 2007  +
CurationStatusuncurated  +
DefinitionSourceNeuroNames  +
EditorialNoteThe lobular mapping of Brodmann areas has The lobular mapping of Brodmann areas has been adapted from the LOCATION hierarchy in Brainmap.org. To date (2007-10-02) this only define the set of lateralized cerebral lobe locations where a given Brodmann area is located. The intension is to eventually incorporate the more detailed gyri and sulci relations as well. detailed gyri and sulci relations as well.
ExternallySourcedDefinitionThe term area 20 of Brodmann-1909 refers t The term area 20 of Brodmann-1909 refers to a subdivision of the cerebral cortex of the guenon defined on the basis of cytoarchitecture. It is cytoarchitecturally homologous to the inferior temporal area 20 of the human (Brodmann-1909). Distinctive features (Brodmann-1905): area 20 is similar to area 19 of Brodmann-1909 in the relative abundance of small cell types relative to the number of larger pyramidal cells; a very dense, wide internal granular layer (IV) composed almost exclusively of granule cells, as in area 18 of Brodmann-1909; a broad, clear internal pyramidal layer (V) with few cells; and a distinct multiform layer (VI). The major differences from areas 18 and 19 are somewhat lesser cell density; absence of a division of the external pyramidal layer (III) into sublayers 3a and 3b; layer V is more clearly distinguished from layer VI and, on average, has a greater density of pyramidal ganglion cells than in the other areas; layer VI is wider, more diffuse and has fewer cells that are concentrated in the outer part of the layer to produce a denser sublayer 6a and a less dense sublayer 6b. sublayer 6a and a less dense sublayer 6b.
Idbirnlex_1751  +
LabelBrodmann (1909) area 20  +
ModifiedDate26 April 2010  +
NeuronamesLinkhttp://braininfo.rprc.washington.edu/Scripts/hiercentraldirectory.aspx?ID=1053  +
SuperCategoryBrodmann partition scheme region  +
SynonymArea temporalis inferior  +, inferior temporal  +, Brodmann area 20  +, area 20 of Brodmann-1909  +, and Brodmann.20  +
UmlscuiC1272538  +