1. Platysma
- origin: Fascia of superior portions of pectoralis major and deltoideus
- insertion: Mandible, blends with muscles around the angle of the mouth, and skin of the lower face
- action: draws outer part of lower lip inferiorly and posteriorly as in pouting, depresses the mandible.
2. Mentalis
- origin: mandible
- insertion: chin
- action: elevates and wrinkles skin of chin, protrudes lower lip, as in pouting
3. Orbicularis oris
- origin: medial aspects of maxilla and mandible, perioral skin and muscles, modiolus
- insertion: skin and mucous membrane of lips
- action: close mouth, protrudes lips, and compresses them
4. Corrugator supercilli
- origin: Medial end of superciliary
- insertion skin of eyebrow
- action: draws eyebrow inferiorly and wrinkles skin of the forehead vertically, create wrinkles between eyebrows
5. Orbicularis oculi
- origin: medial wall of orbit
- insertion: circular path around orbit
- action: closes eye
6. Occipitofrontalis
- origin: Epicranial aponeurosis
- insertion: Skin superior to supraorbital margin
- action: draws scalp anteriorly, raises eyebrows, and wrinkles skin of forehead horizontally as in look of surprise