Stapedius muscle
Last revised by Daniel J Bell ◉ on 14 Jul 2019
Citation, DOI, disclosures and article data
Citation:
Gaillard F, Bell D, Hacking C, et al. Stapedius muscle. Reference article, Radiopaedia.org (Accessed on 29 Sep 2023) https://doi.org/10.53347/rID-2083
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rID:
2083
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Disclosures:
At the time the article was created Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosuresLast revised:
14 Jul 2019, Daniel J Bell ◉
Disclosures:
At the time the article was last revised Daniel J Bell had no recorded disclosures.
View Daniel J Bell's current disclosuresRevisions:
18 times, by 8 contributors - see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Stapedius muscles
The stapedius muscle is the tiny muscle in the middle ear that attaches to the posterior aspect of the neck of the stapes, which when contracted dampens vibrations passed to the cochlea via the oval window. The muscle is anchored within the petrous temporal bone and emerges anteriorly into the mesotympanum from the hollow of the pyramidal process. It is supplied by a small branch from the facial nerve.
Related pathology
Paralysis of this muscle leads to a hypersensitivity to loud noises (hyperacusis).
References
- 1. Chummy S. Sinnatamby, R. J. Last. Last's Anatomy. ISBN: 9780443056116
- 2. Carmine D. Clemente. Anatomy. ISBN: 9781582558899
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