Zygomaticus major muscle
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(Redirected from Zygomatic major muscle)
Zygomaticus major | |
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Muscles of the head, face, and neck. Zygomaticus major shown in red.
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Details | |
Latin | musculus zygomaticus major |
Origin | anterior of zygomatic |
Insertion | modiolus of mouth |
facial artery | |
zygomatic and buccal branches of the facial nerve | |
Actions | draws angle of mouth upward and laterally |
Identifiers | |
Dorlands /Elsevier |
m_22/12551382 |
TA | Lua error in Module:Wikidata at line 744: attempt to index field 'wikibase' (a nil value). |
TH | {{#property:P1694}} |
TE | {{#property:P1693}} |
FMA | 46810 |
Anatomical terms of muscle
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The zygomaticus 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 (smile). Like all muscles of facial expression, the zygomatic major is innervated by the facial nerve (the seventh cranial nerve), more specifically, the buccal and zygomatic branches of the facial nerve.
Structure
The zygomaticus extends from each zygomatic arch (cheekbone) to the corners of the mouth.
Function
It raises the corners of the mouth when a person smiles. Dimples may be caused by variations in the structure of this muscle.
Image
See also
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External links
Wikimedia Commons has media related to Zygomaticus major muscles. |