Tags: Anatomical Structure, Brain.
The anterior commissure (also known as the precommissure) is a bundle of nerve fibers (white matter) connecting the two cerebral hemispheres across the midline and placed in front of the columns of the fornix. 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.
