Tragicus
Outer ear muscle
Tragicus | |
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The muscles of the auricula. (Tragicus visible at bottom right.) | |
Details | |
Origin | Base of the tragus |
Insertion | Apex of the tragus |
Artery | Auricular branches of posterior auricular and auricular branch of occipital arteries |
Nerve | Facial nerve |
Actions | Increase the opening of the external acoustic meatus |
Identifiers | |
Latin | musculus tragicus |
TA98 | A15.3.01.039 |
TA2 | 2095 |
FMA | 48974 |
Anatomical terms of muscle [edit on Wikidata] |
The tragicus, also called the tragus muscle or Valsalva muscle,[1] is an intrinsic muscle of the outer ear.
It is a short, flattened vertical band on the lateral surface of the tragus.[1]
While the muscle modifies the auricular shape only minimally in the majority of individuals, this action could increase the opening of the external acoustic meatus in some.[2]
Additional images
- Anatomy of human ear
See also
References
This article incorporates text in the public domain from page 1035 of the 20th edition of Gray's Anatomy (1918)
- ^ a b "Definition: 'Tragius (muscle)'". MediLexicon International Ltd. Retrieved 9 March 2013.
- ^ "Tragicus". AnatomyExpert. Archived from the original on 21 July 2013. Retrieved 9 March 2013.
External links
- AnatomyExpert.com
- v
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- Auricle
- helix
- antihelix
- tragus
- antitragus
- intertragic notch
- earlobe
- Ear canal
- Auricular muscles
- Eardrum
Tympanic cavity |
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Ossicles | |
Auditory tube / Eustachian tube |
Labyrinths | |||||
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Auditory system |
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Vestibular system |
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