Marginal mandibular branch of the facial nerve
The marginal mandibular branch of the facial nerve arises from the facial nerve (CN VII) in the parotid gland at the parotid plexus. It passes anterior-ward deep to the platysma and depressor anguli oris muscles. It provides motor innervation to muscles of the lower lip and chin: the depressor labii inferioris muscle, depressor anguli oris muscle, and mentalis muscle. It communicates with the mental branch of the inferior alveolar nerve.
| Marginal mandibular branch of the facial nerve | |
|---|---|
Plan of the facial and intermediate nerves and their communication with other nerves. (Labeled at center bottom, second from bottom, as "Mandibular".) | |
The nerves of the scalp, face, and side of neck. | |
| Details | |
| From | facial nerve |
| Identifiers | |
| Latin | ramus marginalis mandibularis nervi facialis |
| TA98 | A14.2.01.113 |
| TA2 | 6305 |
| FMA | 53365 |
| Anatomical terms of neuroanatomy | |
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