What is the anatomy of the external ear relevant to auricular hematoma?

Updated: May 10, 2018
  • Author: Inna Leybell, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Answer

Answer

The auricle and external acoustic meatus (or external auditory canal) compose the external ear. The external ear functions to collect and amplify sound, which then gets transmitted to the middle ear. The asymmetric shape of the external auricle introduces delays in the path of sound that assist in sound localization.

The arterial supply of the auricle is composed of the posterior auricular artery, the anterior auricular branch of the superficial temporal artery, and the occipital artery, which also contributes. Veins accompany the corresponding named arteries.

For more information about the relevant anatomy, see Ear Anatomy.


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