Head and Neck Flashcards
What is the origin and insertion of temporalis?
O - temporal
I - Mandible
What is the action and innervation of temporalis?
A - elevate and retract mandible
I - trigeminal nerve
What is the origin and insertion of masseter?
O - zygomatic arch
I - mandible
What is the action and innervation of masseter?
A - elevate and protract mandible
I - trigeminal nerve
What is the origin and insertion of occipitofrontalis?
O - frontal
I - aponeurosis
What is the action and innervation of occipitofrontalis?
A - wrinkles forehead, raises eyebrows
I - facial nerve
What is the origin and insertion of orbicularis oculi?
O - margin of orbit
I - skin of eyelids
What is the action and innervation of orbicularis oculi?
A - closes eye, blinks
I - facial nerve
What is the origin and insertion of orbicularis oris?
O - maxilla and mandible
I - angles of the mouth
What is the action and innervation of orbicularis oris?
A - compresses lips
I - facial nerve
What is the origin and insertion of nasalis?
O - maxilla
I - nose
What is the action and innervation of nasalis?
A - compresses nose
I - facial nerve
What is the origin and insertion of sternocleidomastoid?
O - sternum and clavicle
I - mastoid process of temporal
What is the action and innervation of sternocleidomastoid?
A - tilt head
I - accessory nerve
