Tragicus

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

Tragicus
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]

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

• Intrinsic muscles of external ear