Facial colliculus

The facial colliculus is an elevated area located on the pontine tegmentum (dorsal pons) in the floor of the fourth ventricle. It is formed by fibers from the facial motor nucleus of the facial nerve (cranial nerve VII) as they loop over the abducens nucleus.

Facial colliculus
Rhomboid fossa. (Colliculus facialis labeled at center left.)
Human caudal brainstem posterior view (Colliculus facialis is #3)
Details
Identifiers
Latincolliculus facialis
NeuroNames624
TA98A14.1.05.705
FMA78480
Anatomical terms of neuroanatomy

Clinical Significance

A facial colliculus lesion would result in ipsilateral facial paralysis (i.e. Bell's Palsy) and inhibited ipsilateral and unopposed contralateral eye deviation.[1]

Additional images

References

  1. Yoo, Hannah; Mihaila, Dana M. (2022), "Neuroanatomy, Facial Colliculus", StatPearls, Treasure Island (FL): StatPearls Publishing, PMID 32310367, retrieved 2022-03-26


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