Exercise 14
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Masseter and temporalis
Name two muscles that close the jaw
Temporalis fossa
What muscles originates on the temporal fossa?
Skin of eyelid
Where does the orbicularis oculi insert?
Mastoid process
Where does the sternocleidomastoid muscle insert?
Orbicularis oculi
Name a muscle that closes the eye
Abducts corner of the mouth
What is the action of the risorius?
Rotates, extends, flexes the neck
What is the action of the sternocleidomastoid?
Coronoid process
What is the insertion of the temporalis?
Zygomatic Arch
What is the origin of the masseter muscle?
Sphincter
What kind of muscle is the orbicularis oculi or orbicularis oris muscle in terms of action?
Orbicularis oris
What muscle closes the lips?
Temporalis
What muscle is a synergist with the masseter?