Transverse muscle of auricle

Transverse muscle of auricle

The muscles of the outer ear.
Details
Origin Cranial surface of the eminentia conchae
Insertion Cranial surface of the eminentia scaphae
Artery Auricular branches of posterior auricular and auricular branch of occipital arteries
Nerve Facial nerve
Actions Flattens the cranial profile outer ear
Identifiers
Latin Musculus transversus auriculae
TA A15.3.01.043
FMA 48983

Anatomical terms of muscle

The transverse muscle of auricle (transverse auricular muscle,[1] transversus auriculae, transversus auricularis or transverse muscle of pinna[2]) is an intrinsic muscle of the outer ear.

The muscle is located on the cranial surface of the pinna. It consists of scattered fibers, partly tendinous and partly muscular, extending from the eminentia conchae to the prominence corresponding with the scapha.[1]

While the muscle modifies the auricular shape only minimally in the majority of individuals, it could help flatten the cranial profile of the auricular cartilage.[2]

The transverse muscle is developmentally derived from the second pharyngeal arch.[2]

Additional images

Anatomy of human ear 

See also

References

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

  1. 1 2 "Definition: 'Transverse Muscle Of Auricle'". MediLexicon International Ltd. Retrieved 10 March 2013.
  2. 1 2 3 "Transverse muscle of auricle". AnatomyExpert. Retrieved 10 March 2013.


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