arcuate fasciculus


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to arcuate fasciculus: conduction aphasia, uncinate fasciculus

su·pe·ri·or lon·gi·tu·di·nal fas·cic·u·lus

[TA]
long association fiber bundle lateral to the centrum ovale of the cerebral hemisphere, connecting the frontal, occipital, and temporal lobes; the fibers pass from the frontal lobe through the operculum to the posterior end of the lateral sulcus where many fibers radiate into the occipital lobe and others turn downward and forward around the putamen and pass to anterior portions of the temporal lobe.

arcuate fasciculus

A myelinated axon tract lying under the cerebral cortex. It is a long association tract that interconnects the superior and middle gyri of the frontal lobe with the ipsilateral temporal lobe.
See also: fasciculus
References in periodicals archive ?
There are records of lesions occurring in the arcuate fasciculus that have not resulted in aphasia.
The arcuate fasciculus was smaller in volume, and had a lower fibre count in the tone-deaf individuals.
Particularly, the superior branch of the arcuate fasciculus in the right hemisphere could not be detected in the tone-deaf individuals.
When compared with normal controls, children who stutter had reduced white-matter integrity only in the left arcuate fasciculus (a tract that underlies the oral-facial motor regions).