just about any set of fibers constructing a portion of the pyramidal tract which go from the cerebral cortex onto the nuclei within the pons, medulla oblongata, and midbrain. Commonly referred to as the corticobulbar fiber.

CORTICONUCLEAR FIBER: "The corticonuclear fibers in the white rats began to deteriorate while those of the black rats did not."
Cite this page: N., Pam M.S., "CORTICONUCLEAR FIBER," in, April 7, 2013, (accessed September 19, 2021).