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posterior auricular nerve
A branch of the facial nerve, which supplies the posterior auricular and intrinsic muscles of the auricle and, through its occipital branch, innervates the occipital belly of the occipitofrontal muscle.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.