The cingulate gyrus is an arched convolution that lies next to the corpus callosum and is separated from it by the sulcus of the corpus callosum. It begins below the rostrum, curves around in front of the genu, extends along the trunk, and then turns downward behind the splenium of the corpus callosum, where it is connected by the narrow isthmus of the cingulate gyrus to the parahippocampal gyrus. Continue Scrolling To Read More Below...