They are used with a singular noun. Now please check your email to confirm your subscription. The basic principles of excision are the same as for removal of an acoustic neurinoma, although the facial nerve will be divided. Branchial Motor The branchial motor component of the facial nerve provides innervation of the following muscles: Generate a file for use with external citation management software. In severe cases, we might need to repair the nerve.
Definition of 'facial nerve'
The second genu marks the beginning of the mastoid segment. One of the branches provides motor signals to the stapedius muscle, which is situated in the inner ear. Schematic illustration shows the facial nerve and its peripheral connections. In most cases Physiopedia articles are a secondary source and so should not be used as references. Hypoglossal-facial nerve anastomosis for reinnervation of the paralyzed face.
Facial Nerve News, Research
The sensory fibers of the nerves draw alongside the chorda tympani via the intermedius part into the nucleus of the solitary tract. The vestibulocochlear nerve enters the IAC inferiorly caudad. A useful mnemonic for remembering this relationship is "Seven-up over Coke. At the fundus of the IAC, the falciform crest crista falciformis divides the IAC into superior and inferior compartments. Removal of parotid tissue inferior to this line can be performed relatively safely.
A new technique for hypoglossal-facial nerve repair. It then descends between the Pterygoideus externus and internus on the medial surface of the spina angularis of the sphenoid, which it sometimes grooves, and joins, at an acute angle, the posterior border of the lingual nerve. B A graph for a variety of diseases treated for facial paralysis. From the geniculate ganglion, where the primary sensory cell bodies are located, general sensory information is relayed in the facial nerve from a small portion of the concha of the auricle. Brain Tumors Third Edition , Related terms: However, transection of the hypoglossal nerve causes ipsilateral hemiglossal atrophy. At the bottom of the meatus, the facial nerve enters the facial canal, which it traverses to its termination at the stylomastoid foramen.