corticobulbar tract

(redirected from Corticobulbar fiber)

cor·ti·co·nu·cle·ar fi·bers

descriptive term connotating fibers from a cortical structure (cerebral or cerebellar) passing to subcortical cell groups; fibers comprising the fibrae corticonucleares bulbi [TA], fibrae corticonucleares pontis [TA], and fibrae corticonucleares mesencephali [TA]; cerebellar corticonuclear fibers (Purkinje cell axons to the cerebellar nuclei).
Synonym(s): fibrae corticonucleares [TA]
Farlex Partner Medical Dictionary © Farlex 2012

corticobulbar tract

An axon tract from the motor cortex that innervates the reticular formation and the cranial nerve nuclei in the hindbrain.
See also: tract
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Brain damage causes spasticity due to the disruption of facilitatory corticobulbar fibers and causes inhibition of ventromedial reticular formation [3].