corticobulbar tract


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Related to corticobulbar tract: corticospinal tract, pyramidal tract, Bulbar palsy, Pseudobulbar palsy, Rubrospinal tract, upper motor neuron

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]

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
References in periodicals archive ?
The corticospinal and corticobulbar tracts are supplied by the ASA and are affected in ACS.
According to these cases, they described the course of the facial corticobulbar tract as consisting of looping fibers that descend at least to the medullary level and then decussate.
This results in compression of the crus and subsequent damaging of the descending corticospinal tracts and corticobulbar tracts (Kernohan & Woltman).