Corpus callosum

Corpus callosum
Corpus callosum from above, front part at the top of the image.
Sagittal section of brain, front part to the left. The corpus callosum can be seen in the center, in light gray
Details
Pronunciation/ˈkɔːrpəs kəˈlsəm/
Part ofHuman brain
PartsGenu, rostrum, trunk, splenium
Identifiers
MeSHD003337
NeuroNames191
NeuroLex IDbirnlex_1087
TA98A14.1.09.241
TA25604
FMA86464
Anatomical terms of neuroanatomy

The corpus callosum (Latin for "tough body"), also callosal commissure, is a wide, thick nerve tract, consisting of a flat bundle of commissural fibers, beneath the cerebral cortex in the brain. The corpus callosum is only found in placental mammals.[1] It spans part of the longitudinal fissure, connecting the left and right cerebral hemispheres, enabling communication between them. It is the largest white matter structure in the human brain, about 10 in (250 mm) in length and consisting of 200–300 million axonal projections.[2][3]

A number of separate nerve tracts, classed as subregions of the corpus callosum, connect different parts of the hemispheres. The main ones are known as the genu, the rostrum, the trunk or body, and the splenium.[4]

  1. ^ Velut, S; Destrieux, C; Kakou, M (May 1998). "[Morphologic anatomy of the corpus callosum]". Neuro-Chirurgie. 44 (1 Suppl): 17–30. PMID 9757322.
  2. ^ "Corpus callosum". Queensland Brain Institute. 10 November 2017.
  3. ^ Luders, Eileen; Thompson, Paul M.; Toga, Arthur W. (18 August 2010). "The Development of the Corpus Callosum in the Healthy Human Brain". Journal of Neuroscience. 30 (33): 10985–10990. doi:10.1523/JNEUROSCI.5122-09.2010. PMC 3197828. PMID 20720105.
  4. ^ Gaillard, Frank. "Corpus callosum | Radiology Reference Article | Radiopaedia.org". radiopaedia.org.

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