Tragicus

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Tragicus
Gray906.png
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
TA A15.3.01.039
FMA 48974
Anatomical terms of muscle

The Tragicus (muscle of tragus 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[edit]

Anatomy of human ear 

See also[edit]

References[edit]

This article incorporates text in the public domain from page 1035 of the 20th edition of Gray's Anatomy (1918)

  1. ^ a b "Definition: 'Tragius (muscle)'". MediLexicon International Ltd. Retrieved 9 March 2013. 
  2. ^ "Tragicus". AnatomyExpert. Retrieved 9 March 2013. 

External links[edit]