The tragicus, also called the tragus muscle or Valsalva muscle,[1] is an intrinsic muscle of the outer ear.
Tragicus | |
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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 |
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
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editReferences
editThis 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.
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