Morphological anatomy of the corpus callosum

The corpus callosum (CC) is the largest commissural pathway that connects functional cortical areas in the cerebral hemispheres. It is located in the middle of the brain. Its primary function is to integrate and transfer information from both cerebral hemispheres to process sensory, motor, and higher-level cognitive signals. From front to back, the parts of the CC are the rostrum, genu, body, isthmus, and splenium. The boundaries and subunits of these parts are distinguished in morphometric studies. Fibers of the CC extending to the hemispheres form superior or dorsal, inferior or ventral, and anterior and posterior radiations. Arterial blood is supplied to the CC from its outer surface, and the main arteries involved are the pericallosal and the posterior pericallosal. Venous drainage of the CC is mainly from the inner surface, but there is also a connection with the superficial veins of the brain. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023. All rights reserved.