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Cranial Muscles

Learning muscles of the head
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Frontalis
o: cranial aponeurosis; i: skin of eyebrows; raises brows
Temporalis
O: temporal bone | I: coronoid process of mandible | A: elevates and retracts mandible; closes jaw, covers over temporal bone
Orbicularis oculi
o: frontal bone; i: tissue around eyes; blinks and closes eyes
zygomaticus
o: zygomatic bone; i: skin and muscle at corner of lips; raises corners of mouth
Buccinator
compresses cheek, moves food around in the mouth
orbicularis oris
o: mandible and maxilla; i: skin and muscle around mouth; closes and protrudes lips
masseter
o: temporal bone; i: mandible; closes jaw
sternocleidomastoid
o: sternum, clavicle; i: temporal bone; flexes neck, rotates head