Zygomaticus major muscle

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 upward and laterally

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.

[edit] External links

• LUC zmj
• 208339005 at GPnotebook
• Zygomaticus+major+muscle at eMedicine Dictionary
• PTCentral
• Clips of muscle action

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