Zygomatic major muscle

What is Zygomatic major muscle?

Zygomatic major muscle meaning Muscle of facial expression. Its main function is to pull the angle of the mouth upward and backward when laughing. Other muscles of facial expression include:BuccinatorFrontalisLevator labii superiorisLevator labii superioris alaeque nasiMentalisOccipitalisOrbicularis orisRisoris Zygomaticus minor

 

reference: national Cancer Institute – Glossary for Registrars

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