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Zygomaticus major muscle

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Zygomatic major
Muscles of the head, face, and neck.
Latin musculus zygomaticus major
Gray's subject #108 383
Origin: anterior of zygomatic
Insertion: modiolus of mouth
Artery: facial artery
Nerve: buccal branch of facial nerve
Action: draws angle of mouth
Dorlands/Elsevier m_22/12551382

The Zygomatic major is a muscle of the human body. It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly. Like all muscles of facial expression, the zygomatic major is innervated by the facial nerve (Cranial Nerve VII).

The Zygomaticus extends from each zygomatic arch (cheekbone) to the corners of the mouth. It raises the corners of the mouth when a person smiles.

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