One of the branches of the facial nerve serves the stapedius muscle, which is a muscle situated in the inner ear. The CN7 facial nerve splits into several branches. Here, they are in very close proximity to the inner ear. The facial nerves are composed of almost 10, neurons. The facial nerve supplies motor and sensory innervation to the muscles formed by the second pharyngeal arch, including the muscles of facial expression , the posterior belly of the digastric, stylohyoid and stapedius. Three brainstem nuclei contribute to the facial nerve: All articles with unsourced statements Articles with unsourced statements from January Articles with unsourced statements from August Commons category link is on Wikidata Wikipedia articles with TA98 identifiers.
The medical information on this site is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes. Damage to the oculomotor nerve III can cause double vision diplopia and inability to coordinate the movements of both eyes strabismus , also eyelid drooping ptosis and pupil dilation mydriasis. Anatomical terms of neuroanatomy [ edit on Wikidata ]. Damage to the trochlear nerve IV can also cause diplopia with the eye adducted and elevated. Facial paralysis may be caused by other conditions including stroke, and similar conditions to Bell's Palsy are occasionally misdiagnosed as Bell's Palsy. Cholesterol isn't all good, nor is it all bad. Nucleus Branches no significant branches.
Facial nerve - Wikipedia
The facial and intermediate nerves can be collectively referred to as the nervus intermediofacialis. It 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 cranial nerves are usually designated by Roman numerals. The paths within the skull are called "intracranial" and the paths outside the skull are called "extracranial".
Description: The cranial nerves are considered components of the peripheral nervous system PNS ,  although on a structural level the olfactory I , optic II , and trigeminal V nerves are more accurately considered part of the central nervous system CNS. Thus, damage to the nerve can produce a varied set of symptoms, depending on the site of the lesion. There are several branches of these facial nerves, each which perform a different type of function; sensory, parasympathetic or motor functions. The facial nerves of a human being have a wide array of functions, as discussed above.