Corpus Callosum. The corpus callosum is the brain’s largest fiber track pathway. It interconnects the two cerebral hemispheres and is divided, front to back, into four parts—the rostrum, the genu, the body, and the splenium. It is a fundamental structure, and its fiber tracts are essential to the interhemispheric exchange of brain signals, including the support of memory, learning, and sensory functions of the brain.
Source: Robert Schuster