Tragicus
Outer ear muscle / From Wikipedia, the free encyclopedia
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The tragicus, also called the tragus muscle or Valsalva muscle,[1] is an intrinsic muscle of the outer ear.
Quick Facts Details, Origin ...
Tragicus | |
---|---|
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 |
Close
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]