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Jun 23, 2024 · Anatomically, the course of the facial nerve can be divided into two parts: Intracranial – the course of the nerve through the cranial cavity, and the cranium itself. Extracranial – the course of the nerve outside the cranium, through the face and neck.
Oct 30, 2023 · Intratemporal course The facial nerve roots leave the cranial cavity via the internal acoustic meatus to enter the facial canal in the petrous part of the temporal bone, where they fuse to form the facial nerve proper. The nerve makes a sharp anterior-to-posterior turn at a point known as the geniculum of facial nerve.
Feb 15, 2024 · General course. The facial nerve has six named segments ( facial nerve segments mnemonic ): intracranial (cisternal) segment: no branches. meatal (canalicular) segment ( internal auditory canal (IAC) ): 8 mm long, no branches. labyrinthine segment (IAC to geniculate ganglion): 3-4 mm long, three branches (from geniculate ganglion)
May 23, 2023 · The course of the facial nerve axons inside the brainstem. The facial nerve is comprised of a motor root (containing motor fibers) and the nervus intermedius (containing sensory and parasympathetic fibers).
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.
Jul 24, 2023 · 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.
Apr 11, 2019 · An overview of the anatomy of the facial nerve (CN VII) including its course, the facial nucleus, branches of the facial nerve and facial nerve palsy.
