Association fiber
Axons that connect cortical areas within the same cerebral hemisphere
From Wikipedia, the free encyclopedia
Association fibers are axons (nerve fibers) that connect cortical areas within the same cerebral hemisphere.[1]
| Association fiber | |
|---|---|
Diagram showing principal systems of association fibers in the cerebrum. | |
 Dissection of cerebral cortex and brainstem showing association fibers and insular cortex after removal of its superficial grey matter | |
| Details | |
| Identifiers | |
| Latin | fibrae associationis telencephali |
| TA98 | A14.1.00.016 A14.1.09.553 |
| TA2 | 5593 |
| FMA | 75241 |
| Anatomical terms of neuroanatomy | |
In human neuroanatomy, axons within the brain, can be categorized on the basis of their course and connections as association fibers, projection fibers, and commissural fibers.[1] Bundles of fibers are known as nerve tracts, and consist of association tracts, commissural tracts, and projection tracts.
The association fibers unite different parts of the same cerebral hemisphere, and are of two kinds: (1) short association fibers that connect adjacent gyri; (2) long association fibers that make connections between more distant parts.
Short association fibers
Long association fibers
The long association fibers connect the more widely separated gyri and are grouped into bundles.[3] They include the following:
Diffusion tensor imaging is a non-invasive method to study the course of association fibers.