The following table summarizes the Innervation of facial muscles by the terminal branches of facial nerve.
Terminal branches of facial nerve | Muscles innervated |
Temporal branch | • Upper part of the orbicularis oculi • Frontalis • Corrugator supercilii |
Zygomatic branch | Lower part of the orbicularis oculi |
Buccal branches (a) upper buccal branch | • Zygomaticus major and minor • Levator anguli oris • Levator labii superioris • Levator labii superioris alaeque nasi • Muscles of the nose |
(b) lower buccal branch | • Buccinator • Orbicularis oris |
Marginal mandibular branch | • Risorius • Depressor anguli oris • Depressor labii inferioris • Mentalis |
Cervical branch | Platysma |

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