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Individual differences |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |
Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)
|Muscles of the head, face, and neck.|
|Latin||musculus zygomaticus major|
|Gray's||subject #108 383|
|Origin:||anterior of zygomatic|
|Insertion:||modiolus of mouth|
|Nerve:||buccal branch of facial nerve|
|Action:||draws angle of mouth|
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.
- LUC zmj
- GPnotebook 208339005
- Dictionary at eMedicine Zygomaticus+major+muscle
- Clips of muscle action
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