The great majority of fibers connecting the two hemispheres travel through the corpus callosum, which is over 10 times larger than the anterior commissure, and other routes of communication pass through the hippocampal commissure or, indirectly, via subcortical connections.
A considerable number of fibers linking the two hemispheres pass through the corpus callosum, which is significantly larger than the anterior commissure, and alternative pathways include the hippocampal commissure or, indirectly, through subcortical connections.