Neuroanatomy, Cranial Nerve 7 (Facial)
- PMID: 30252375
- Bookshelf ID: NBK526119
Neuroanatomy, Cranial Nerve 7 (Facial)
Excerpt
The facial nerve is the seventh cranial nerve (CN VII). It arises from the brain stem and extends posteriorly to the abducens nerve and anteriorly to the vestibulocochlear nerve. It courses through the facial canal in the temporal bone and exits through the stylomastoid foramen after which it divides into terminal branches at the posterior edge of the parotid gland. The facial nerve provides motor innervation of facial muscles that are responsible for facial expression, parasympathetic innervation of the glands of the oral cavity and the lacrimal gland, and sensory innervation of the anterior two-thirds of the tongue.
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- Seneviratne SO, Patel BC. StatPearls [Internet] StatPearls Publishing; Treasure Island (FL): 2023. May 23, Facial Nerve Anatomy and Clinical Applications. - PubMed
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