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| Facial colliculus | |
|---|---|
 Rhomboid fossa. (Colliculus facialis labeled at center left.) | |
 Human caudal brainstem posterior view (Colliculus facialis is #3) | |
| Details | |
| Identifiers | |
| Latin | colliculus facialis |
| NeuroNames | 624 |
| TA98 | A14.1.05.705 |
| FMA | 78480 |
| Anatomical terms of neuroanatomy | |
Thefacial colliculus is an elevated area located in thepontine tegmentum (dorsal pons),[citation needed] within the floor of thefourth ventricle (i.e. therhomboid fossa). It is formed by fibres from thefacial motor nucleus looping over theabducens nucleus. The facial colliculus is an essential landmark of the rhomboid fossa.[1]
The facial colliculus occurs within the rhomboid fossa (i.e. the floor of the fourth ventricle) where it is placed lateral to its (midline) median sulcus.[1]
The facial colliculus is formed by brachial motor nerve fibres of thefacial nerve (CN VII) looping over the (ipsilateral)abducens nucleus, forming a bump upon the surface.[1]
A facial colliculus lesion would result in ipsilateral facialparalysis (i.e.Bell's palsy) and inhibited ipsilateral and unopposed contralateral eye deviation.[1]
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