Exercise 14

skin of the eyelid

where does the orbicularis oculi insert

mastoid process and superior nuchal line

where does the sternocleidomastoid muscle insert

orbicularis oculi

name a muscle that closes the eye

masseter and temporalis

name the two muscles that close the jaw

temporalis

What muscle originates on the temporal fossa

Abducts corner of mouth

What is the action of the risorius

cornoid process, mandibular ramus

What is the insertion of the temporalis

Zygomatic arch

What is the origin of the masseter muscle

Sphincter muscles

What kind of muscle is the obicularis oculi or orbicularis oris muscle in terms of action

one:rotates and extends the neck; both flex the neck

what is the action of the sternocledimastoid

orbicularis oris

what muscle closes the lips

temporalis

what muscle is the synergist with the masseter