Posterior auricular muscle

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Posterior auricular muscle
Auricularis posterior.png
origin
Temporal bone
approach
auricle
function
Withdrawal of the ear
Innervation
Posterior auricular nerve of the facial nerve ( cranial nerve VII)

The auricularis posterior muscle ("rear ear muscle") is a small skin muscle of the head and part of the auricle muscles . It arises from the mastoid part of the temporal bone and attaches to the base of the auricle . In humans, it consists of two delicate strands that cover the retroauricular lymph nodes .

In animals in which the ears are significantly more mobile and play a greater role in facial expressions and social behavior ("ear play"), several rear ear muscles are developed. In detail these are:

  • Musculus cervicoscutularis (neck-shield-muscle)
  • Musculus cervicooauricularis superficialis (superficial throat and ear muscle)
  • Musculus cervicooauricularis medius (middle throat and ear muscle)
  • Musculus cervicooauricularis profundus (deep throat-ear muscle)

Web links

Commons : Auricularis posterior muscles  - Collection of images, videos and audio files

literature

  • Uwe Gille: Ear, Auris. In: FV. Salomon, H. Geyer, U. Gille (ed.): Anatomy for veterinary medicine . Enke, Stuttgart 2004, ISBN 3-8304-1007-7 , pp. 612-621.