1.Muscle: Platysma
Origin: Fascia of the deltoid and pectoralis major
Insertion: Skin, subcutaneous tissue of lower face and mandible
Action: Depression of mandible and angle of mouth, Skin of lower face and anterior neck tenses
2.Muscle: Mentalis
Origin: Anterior surface of the mandible near the mental symphysis
Insertion: skin of the chin
Action: Raises skin of chin, elevates and protrudes lower lip (pouting)
3.Muscle: Orbicularis Oris
Origin: Modiolus of Mouth
Insertion: Submucosa, dermis (lips)
Action: Closes and protrudes lips (kissing), compress lips against teeth, shapes lips during speech
4.Muscle: Corrugator Supercilii
Origin: Medial part of Superciliary Arch
Insertion: skin of medial, half of eyebrow
Action: Pulling of eyebrows inferiorly, wrinkles forehead skin vertically (frowning)
5.Muscle: Orbicularis Oculi
Origin: Frontal bone and Maxilla (adjacent regions, eyelids (medial angle)
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: Draws scalp anteriorly, raises eyebrows, wrinkles forehead horizontally (look of surprise)