|Posterior of man|
Plan of the facial and intermediate nerves and their communication with other nerves. (Post. auricular br. labeled at bottom left.)
The nerves of the scalp, face, and side of neck. (Post. auricular visible near center, behind ear.)
|Innervates||posterior auricular muscle, occipitalis muscle (posterior part of occipitofrontalis)|
|Latin||n. auricularis posterior|
|Anatomical terms of neuroanatomy|
The posterior auricular nerve arises from the facial nerve close to the stylomastoid foramen and runs upward in front of the mastoid process; here it is joined by a filament from the auricular branch of the vagus and communicates with the posterior branch of the great auricular as well as with the lesser occipital.
As it ascends between the external acoustic meatus and mastoid process it divides into auricular and occipital branches.