1.Muscle: Platysma
Origin: Covers the pectoralis major muscle and the deltoid muscle
Insertion: Lower face and mandible
Action: Depresses the mandible and pull the lower lip down
2.Muscle: Mentalis
Origin: Anterior surface of the mandible
Insertion: Skin of the lower lip
Action: Creates pouting by elevating and protruding the lower lip.
3.Muscle: Orbicularis Oris
Origin: Modiolus of Mouth
Insertion: Skin at the mouth corner
Action: It closes and protrudes lips for kissing and speaking
4.Muscle: Corrugator Supercilii
Origin: Medial end of superciliary arch of frontal lobe
Insertion: Skin of the eyebrow
Action: Wrinkles forehead skin vertically (frowning) and causes the eyebrows to move downwards.
5.Muscle: Orbicularis Oculi
Origin: Medial wall of orbit
Insertion: Upper and lower eyelids, skin around the margin of the orbit
Action: Closes the eyelids (blinking)
6. Muscle: Occipitofrontalis
Origin: Epicranial Frontalis
Insertion: Skin superior to supraorbital margin
Action: It lifts the eyebrows, makes horizontal lines on the forehead and moves the scalp ahead.