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The Zygomaticus Major is a muscle of facial expression of the mouth. The muscles of facial expression of the mouth are:
- Levator Labii Superioris Alaeque Nasi (also a muscle of fascial expression of the nose)
- Levator Labii Superioris
- Zygomaticus Minor
- Zygomaticus Major
- Levator Anguli Oris
- Risorius
- Depressor Anguli Oris
- Depressor Labii Inferioris
- Mentalis
- Buccinator
- Orbicularis Oris
- Platysma
ATTACHMENTS:
- Zygomatic bone to the angle/corner of the mouth.
ACTIONS:
- Elevates the angle/corner of the mouth.
NOTES:
- The contraction of the zygomaticus major to elevate the corner of the mouth contributes to the facial expressions of smiling and laughing.
- The zygomatic minor also attaches onto the zygomatic bone.
