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Facial Expression
Muscles of Facial Expression
Muscle | Origin | Insertion | Function |
---|---|---|---|
Orbicularis oris | Muscles near the mouth | Skin of central lip | Closes lips/protrudes lips (kissing) |
Buccinator | Outer surfaces of maxilla and mandible | Orbicularis oris | Compresses cheeks (blowing air) |
Zygomaticus major and minor | Zygomatic bone | Corner of mouth | Raises corner of mouth (smiling) |
Platysma | Fascia in upper chest | Lower border of mandible | Draws angle of mouth downward (pouting) |
Epicranius | Occipital bone | Skin and muscles around eye | Raises eyebrow (surprised) |
Orbicularis oculi | Maxillary and frontal bones | Skin around eye | Closes eye (blinking) |