Facial Nerve Anatomy

There are sensory fibers as well as motor fibers in the facial nerve. Motor axons innervate the stapedius muscle and muscles that control face expression. The lacrimal and oral cavity glands are supplied by parasympathetic fibers that travel to the ganglia. Anxieties, pinna, and tympanic membrane get innervation from the sensory component. The taste buds on the front two-thirds of the tongue are likewise transmitted by the facial nerve. The facial nerve leaves the brain stem at the cerebellopontine angle, which is located on its ventrolateral surface. This system consists of a proper facial nerve and an intermediate nerve. The intermediate nerve carries a sensory and parasympathetic visceromotor component, in contrast to the purely motor and tiny general somatic afferent components of the true facial nerve. The facial nerve anatomy consists of intracranial, intra-temporal, and extratemporal components related to the temporal bone and the cranium.