1. Muscle name: Platysma
Origin: Fascia over the deltoid; the pectoralis major muscles
Insertion: Mandible
Action: Depresses mandible; draws the face downwards
2. Muscle name: Depressor labii inferioris
Origin: Mandible
Insertion: Skin of lower lip
Action: Depresses of labium inferior oris
3. Muscle name: Orbicularis oris
Origin: Muscle fibers surrounding the opening of the mouth
Insertion: Skin at the corner of mouth
Action: Closes and protrudes lips such as pouting
4. Muscle name: Corrugator supercilii
Origin: Medial end of the superciliary arch of frontal bone
Insertion: Skin of eyebrow
Action: Wrinkles the skin of the forehead vertically and draws eyebrow inferiorly
5. Muscle name: Orbicularis oculi
Origin: Medial wall of orbit
Insertion: Circular path around orbit
Action: Closes eyes
6. Muscle name: Occipitofrontalis
Origin: Epicranial aponeurosis
Insertion: Skin superior to supraorbital margin
Action: Raises eyebrows and wrinkles skin of forehead horizontally