A fascicle is a bundle or a cluster. The Latin term fasciculus (plural fasciculi) may also be used with the same meanings.

Nerve fascicle, a bundle of axons (nerve fibers)

Anterior commissure

Arcuate fasciculus (AF)

Cerebral peduncle

Corpus callosum

Corticospinal tract

Corticostriatal fascicle

Cuneate fasciculus

Dorsal longitudinal fasciculus

Frontal aslant tract (FAT)

Gracile fasciculus

Inferior fronto-occipital fasciculus (IFOF)

Inferior longitudinal fasciculus —- Medial longitudinal fasciculus

Occipitofrontal fasciculus

Optic tract

the third branch of the Superior longitudinal fasciculus (SLF-III)

Thalamocortical radiations

Uncinate fasciculus (UF)

Mesocortical pathway

Mesolimbic pathway

Nigrostriatal pathway

Tuberoinfundibular pathway