Commissural fiber

Commissural fiber
Coronal cross-section of brain showing the corpus callosum at top and the anterior commissure below
Details
Identifiers
Latinfibra commissuralis, fibrae commissurales telencephali
NeuroNames1220
TA98A14.1.00.017
A14.1.09.569
TA25603
FMA75249
Anatomical terms of neuroanatomy

The commissural fibers or transverse fibers are axons that connect the two hemispheres of the brain. Huge numbers of commissural fibers make up the commissural tracts in the brain, the largest of which is the corpus callosum.

In contrast to commissural fibers, association fibers form association tracts that connect regions within the same hemisphere of the brain, and projection fibers connect each region to other parts of the brain or to the spinal cord.