Lab 10: anterior muscles (head and neck only)

Frontal belly of Occipitofrontalis origin

epicranial aponeurosis

Frontal belly of Occipitofrontalis insertion

skin of eyebrows and forehead

Frontal belly of Occipitofrontalis action

raise eyebrows and wrinkle forehead

orbicularis oculi origin

medial orbital margin

orbicularis oculi insertion

skin around eyelids

orbicularis oculi action

close eyelids

orbicularis oris origin

maxilla

orbicularis oris insertion

skin of lips

orbicularis oris action

close and protrude lips

masseter origin

zygomatic arch

masseter insertion

ramus and angle of mandible

masseter action

elevate mandible

zygomatic major origin

zygomatic bone

zygomatic major insertion

corner of mouth

zygomatic major action

elevate mouth corner

buccinator origin

alveolar process of maxilla and mandible

buccinator insertion

orbicular oris at mouth angle

buccinator action

compress cheek

temporalis origin

temporal fossa

temporalis insertion

coronoid process of the mandible

temporalis action

elevates and retracts mandible

sternocleidomastoid origin

manubrium

sternocleidomastoid insertion

mastoid process

sternocleidomastoid action

flex neck