commissural fibers
commissural fibres

The two lemnisci communicate via the commissural fibers of Probst.

In contrast to commissural fibers, association fibers connect regions within the same hemisphere of the brain.

The commissural fibers or transverse fibers connect the two hemispheres of the brain.

In human neuroanatomy, bundles of axons within the brain, called fibers, can be categorized by their function into association fibers, projection fibers, and commissural fibers.

"Gudden's inferior commissure" (commissure of Gudden): Commissural fibers of the optic tract, situated above and behind the optic chiasm.

The commissural fibers of the optic tract are called the commissure of Gudden in his honor, and he is credited for developing a specialized microtome for sectioning the brain for pathological study.

The base of the medulla is defined by the commissural fibers, crossing over from the ipsilateral side in the spinal cord to the contralateral side in the brain stem; below this is the spinal cord.

The basal dendrites of pyramidal neurons are also found here, where they receive input from other pyramidal cells, septal fibers and commissural fibers from the contralateral hippocampus (usually recurrent connections, especially in CA3 and CA2.)

The anterior commissure does provide an alternate communication route between the two hemispheres, though, and in monotremes and marsupials it carries all the commissural fibers arising from the neocortex, whereas in placental mammals the anterior commissure carries only some of these fibers.

Ontogeny of the projection tracts and commissural fibres in the forebrain of the tammar wallaby (Macropus eugenii): timing in comparison with other mammals.