corpus callosum
Acronym:
cc
The term corpus callosum refers to a thick bundle of neuronal axons, defined by dissection and histology. It provides reciprocal connections between topologically equivalent areas of the frontal lobe, parietal lobe, insula, occipital lobe, cingulate gyrus of the limbic lobe and superior temporal gyrus of the temporal lobe. It is found in the human ( Crosby-1962 ), macaque ( Martin-2000 ), rat ( Swanson-2004 ) and mouse ( Hof-2000 ). In the rat, about 80% of its fibers are unmyelinated, 20% myelinated ( Reeves-2012 ). Reciprocal connections between more ventral and medial gyri of the temporal lobe and limbic lobe pass through the anterior commissure.
The cc has six parts defined by dissection. From anterior to posterior they are: anterior forceps of the corpus callosum, rostrum of the corpus callosum, genu of the corpus callosum, body of the corpus callosum, splenium of the corpus callosum and posterior forceps of the corpus callosum. Updated 6 Jun 2024.
Also known as: interhemispheric commissure, neocortical commissure, Commissura magnaNeuroNames ID : 191
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