Association fiber | |
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Details | |
Identifiers | |
Latin | fibrae associationis telencephali |
TA98 | A14.1.00.016 A14.1.09.553 |
TA2 | 5593 |
FMA | 75241 |
Anatomical terms of neuroanatomy |
Association fibers are axons that connect cortical areas within the same cerebral hemisphere.[1]
In human neuroanatomy, axons (nerve fibers) within the brain, can be categorized on the basis of their course and connections as association fibers, projection fibers, and commissural fibers.[1]
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.
Many of the short association fibers (also called arcuate or "U"-fibers) lie immediately beneath the gray substance of the cortex of the hemispheres, and connect together adjacent gyri.[2] Some pass from one wall of the sulcus to the other.[2]
The long association fibers connect the more widely separated gyri and are grouped into bundles.[2] They include the following:
Diffusion tensor imaging is a non-invasive method to study the course of association fibers.