1) Platysma
- Origin: Upper thoracic and shoulder regions from a fascia that covers the pectoralis major and deltoid muscles.
- Insertion: Mandible
- Action: Depresses mandible and lowering inferior lips
2) Mentalis
- Origin: Mandible
- Insertion: Skin of chin
- Action: Depresses lower lip
3) Orbicularis Oris
- Origin: Maxilla and mandible
- Insertion: Skin at corner of mouth
- Action: Compresses and protrudes lips
4) Corrugator supercilia
- Origin: Medial end of superciliary arches
- Insertion: Skin above middle of supraorbital margin
- Action: Draws eyebrow downward and medially; wrinkles skin of forehead vertically
5) Orbicularis oculi
- Origin: Nasal part of frontal bone, frontal process of maxilla, medial palpebral ligament, and lacrimal bone.
- Insertion: Skin of orbital region
- Action: Closes eye
6) Occipitofrontalis
- Origin: Skin of eyebrow, muscles of forehead, superior nuchal line
- Insertion: Epicranial aponeurosis
- Action: Elevates eyebrows, wrinkles skin of forehead, retracts scalp