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Where does the facial nerve exit the skull?
What happens if a facial nerve exits the skull?
Where do facial nerve roots leave the cranial cavity?
Oct 30, 2023 · Once the nerve has exited the skull, the facial nerve can be damaged along its extracranial course to the face. The supply of motor fibers will thus be disrupted, resulting in paralysis or weakness of the facial expression muscles (facial nerve palsy). Extracranial lesions are associated with a variety of etiologies:
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CN IV: Trochlear Nerve. Motor nerve which plays a role in...
- Cranial Nerves Quizzes
Jun 23, 2024 · The facial nerve then exits the facial canal (and the cranium) via the stylomastoid foramen. This is an exit located just posterior to the styloid process of the temporal bone.
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19 hours ago · Tympanic plexus. The facial nerve, also known as cranial nerve VII, is a mixed nerve responsible for both motor and sensory functions. It innervates the muscles of facial expression, the lacrimal and salivary glands, and provides taste sensation to the anterior two-thirds of the tongue. Location The facial nerve originates from the brainstem ...
Jul 24, 2023 · 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.
- Dominika Dulak, Imama A. Naqvi
- Gdansk Medical University, Temple University
- 2018
- 2023/07/24
The facial nerve, also known as the seventh cranial nerve, cranial nerve VII, or simply CN VII, is a cranial nerve that emerges from the pons of the brainstem, controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue.
The nerve must therefore travel through the base of the skull in order to reach the face. Along this route, the facial nerve travels in close proximity to the eighth cranial nerve, the vestibulocochlear nerve, which is responsible for hearing and balance.
Apr 11, 2019 · The facial nerve then exits the skull through the stylomastoid foramen. The extracranial facial nerve As the facial nerve emerges from the stylomastoid foramen, it gives rise to the posterior auricular branch , located immediately anterior to the mastoid process.
