Corpus: Stapedial nerve: Unterschied zwischen den Versionen
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==Definition== | ==Definition== | ||
The '''stapedial nerve''' is a branch of the [[Corpus:Facial nerve|facial nerve]] that branches off within the [[Corpus:Facial nerve canal|facial nerve canal]]. It travels through the petrous part of the [[Corpus:Temporal bone|temporal bone]] to the middle ear, where it innervates the [[Corpus:Stapedius muscle|stapedius muscle]]. | The '''stapedial nerve''' is a branch of the [[Corpus:Facial nerve|facial nerve]] that branches off within the [[Corpus:Facial nerve canal|facial nerve canal]]. It travels through the petrous part of the [[Corpus:Temporal bone|temporal bone]] to the [[Corpus:Middle ear|middle ear]], where it innervates the [[Corpus:Stapedius muscle|stapedius muscle]]. | ||
==Background== | ==Background== | ||
In most people, the stapedius muscle contracts reflexively and involuntarily (stapedius reflex). However, some people are able to trigger a voluntary contraction of the stapedius muscle via the stapedius nerve. | In most people, the stapedius muscle contracts reflexively and involuntarily (stapedius reflex). However, some people are able to trigger a voluntary contraction of the stapedius muscle via the stapedius nerve. | ||
== | ==Clinic== | ||
Hyperacusis can occur if the facial nerve (and thus the stapedius nerve) is damaged. | Hyperacusis can occur if the facial nerve (and thus the stapedius nerve) is damaged. | ||
[[Kategorie:Corpus]] | [[Kategorie:Corpus]] | ||
[[Kategorie:Head]] | [[Kategorie:Head]] | ||
[[Kategorie:Nerve]] | [[Kategorie:Nerve]] | ||
Aktuelle Version vom 25. Juni 2024, 14:52 Uhr
from Latin: stapes - stirrup
Definition
The stapedial nerve is a branch of the facial nerve that branches off within the facial nerve canal. It travels through the petrous part of the temporal bone to the middle ear, where it innervates the stapedius muscle.
Background
In most people, the stapedius muscle contracts reflexively and involuntarily (stapedius reflex). However, some people are able to trigger a voluntary contraction of the stapedius muscle via the stapedius nerve.
Clinic
Hyperacusis can occur if the facial nerve (and thus the stapedius nerve) is damaged.