Corpus callosum  From Wikipedia, the free encyclopedia
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Brain: Corpus callosum Corpus callosum from above. (Anterior
portion is at the top of the image.) Median sagittal section of
brain (person faces to the left). Corpus callosum visible at
center, in light gray Gray's subject #189 828 NeuroNames
hier-173 MeSH Corpus+Callosum NeuroLex ID birnlex_1087 Corpus
callosum with Anatomography  The corpus callosum (from Latin:
"tough body"), also known as the colossal commissure, is a wide,
flat bundle of neural fibers beneath the cortex in the eutherian
brain at the longitudinal fissure. It connects the left and
right cerebral hemispheres and facilitates interhemispheric
communication. It is the largest white matter structure in the
brain, consisting of 200–250 million contralateral axonal
projections.   The posterior portion of the corpus callosum is
called the splenium; the anterior is called the genu (or
"knee"); between the two is the truncus, or "bo