Posterior auricular nerve
Posterior Auricular Nerve
The Posterior Auricular Nerve is a branch of the Facial Nerve that supplies the auricle and the posterior part of the scalp.
Etymology[edit | edit source]
The term "Posterior Auricular Nerve" is derived from Latin words 'posterior' meaning 'back' or 'behind', 'auricular' meaning 'pertaining to the ear' and 'nerve' meaning 'a whitish fibre or bundle of fibres in the body that transmits impulses of sensation to the brain or spinal cord, and impulses from these to the muscles and organs'.
Anatomy[edit | edit source]
The Posterior Auricular Nerve arises close to the Stylomastoid foramen, and ascends posteriorly between the external acoustic meatus and the Mastoid process. It then divides into two branches: the Auricular Branch and the Occipital Branch.
Auricular Branch[edit | edit source]
The Auricular Branch supplies the auricle and the posterior part of the external acoustic meatus.
Occipital Branch[edit | edit source]
The Occipital Branch supplies the area of the scalp posterior to the auricle.
Clinical Significance[edit | edit source]
Damage to the Posterior Auricular Nerve can result in loss of sensation in the area supplied by the nerve. This can occur due to trauma, surgery, or diseases such as Bell's palsy.
Related Terms[edit | edit source]
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Contributors: Prab R. Tumpati, MD
