Occipital Branch of the Facial Nerve, Gross Anatomy

Description

Arising from the extracranial facial nerve after it exits the stylomastoid foramen, the occipital branch (posterior auricular branch) courses posterior to the auricle and ascends toward the occipital scalp. Along this pathway it runs superficial to the mastoid region, then travels superiorly over the posterior scalp where it distributes motor fibers to the occipital belly of the occipitofrontalis and adjacent auricular musculature. The auricle provides a clear lateral landmark, while the sternocleidomastoid occupies the anterolateral neck inferior to the nerve’s ascent. For teaching the facial nerve outside the parotid gland, this posterior route matters because it explains why lesions proximal to the stylomastoid foramen can weaken not only facial expression but also posterior auricular movement and occipital scalp tensioning. Surgeons working around the mastoid process and postauricular sulcus, including during otologic procedures and facelift approaches with postauricular incisions, use this anatomy to avoid iatrogenic denervation of the occipitalis. Small branch. Easy to miss. Use this artwork in gross anatomy and head and neck dissection manuals to clarify extracranial branching patterns, or in ENT and plastic surgery resources when illustrating postauricular incision planning and the at risk facial nerve branches near the ear and posterior scalp. It also fits neuroanatomy teaching on motor distribution versus nearby sensory occipital nerves that share the region but not the function. Anatomical accuracy verified by SciePro's Medical Advisory Board.