MUSCLE: Platysma
ORIGIN: Fascia over the deltoid and the pectoralis major
INSERTION: Mandible, muscles around the mouth, and skin of lower face
ACTION: Draws the mandible posteriorly
MUSCLE: Mentalis
ORIGIN: Mandible
INSERTION: Chin’s skin
ACTION: Pouting as the lower lip moves anteriorly with the skin of the chin being pulled upward.
MUSCLE: Orbicularis Oris
ORIGIN: Fibers that surround the frontal part of the mouth
INSERTION: Skin at the mouth’s corner
ACTION: Protrudes the lips which shows act of kissing
MUSCLE: Corrugator supercilii
ORIGIN: Frontal bone
INSERTION: Skin of the eyebrows
ACTION: Frowning with the eyebrows drawn inferiorly and the forehead skin wrinkles up
MUSCLE: Orbicularis oculi
ORIGIN: Medial bones
INSERTION: Circular composition of the eye’s orbit
ACTION: Closing of eyelids and mimicking the eye wink
MUSCLE: Occipitofrontalis (frontal bell)
ORIGIN: Epicranial aponeurosis
INSERTION: Skin upper to supraorbital margins
ACTION: Maked the scalp anteriorly setback, raises the eyebrows, and wrinkles the skin covering the forehead.