Commissural Nerve Pathways

Commissural nerve tracts are nerve fibers that connect the right and left hemispheres of the brain. They ensure the exchange of information between the hemispheres and the coordination of their activities.

The main commissural pathways include:

1. The corpus callosum is the largest commissural tract connecting the frontal, parietal, temporal and occipital lobes of the cortex of both hemispheres.

2. Anterior commissure (commissura anterior) - connects the temporal and limbic structures of the hemispheres.

3. Posterior commissure (commissura posterior) - connects the occipital lobes of the hemispheres.

4. Hippocampal commissure (commissura hippocampi) - connects the hippocampi of both hemispheres.

5. Cerebellar commissure (commissura cerebelli) - connects the cerebellar hemispheres.

Commissural pathways play an important role in the integration of sensory information, coordination of movements, emotions, and cognitive processes between the hemispheres of the brain. Damage to these structures leads to disturbances in interhemispheric interaction.

A commissure is a structure that connects two symmetrical points on the body of an organism and serves to transmit sensory impulses between them. In the nervous system, commissures perform similar functions, connecting the two symmetrical hemispheres of the brain and ensuring the transfer of information between them. One of the types of commissural nerve pathways is the commissural centers of the brain, which are located at the junction of the two hemispheres and perform the functions of synchronizing the activities of both hemispheres. This article describes how commissural nerves work and what functions they perform in the human nervous system.