muscles of face and neck

*EXTRA CREDIT* splenius capitis

- a prime mover for head extension - allow lateral flexion and rotation of the cervical spine.

temporalis

- chewing - aids in closing the jaw

masseter

- chewing - closes the jaw

buccinator

- facial expressions - assists in smiling, blowing and chewing

zygomaticus

- facial expressions - draws mouth upward when laughing

frontalis

- facial expressions - raises eyebrows upward or when showing surprise

orbicularis oculi

- facial expressions - closes the eye when blinking or squinting

orbicularis oris

- facial expressions - closes the mouth and purses the lips, such as when kissing

trapezius

- move the head - extends the head (such as when looking upward) and flexes the head to one side - elevates the shoulder

sternocleidomastoid

- move the head - flexes the head - sometimes called the praying muscle - rotates the head to the opposite side when only one muscle contracts

*EXTRA CREDIT* platysma

- pulling down the mandible, which opens the mouth - pulling the corners of the lips out to the side and down, which forms a frown

*EXTRA CREDIT* occipitalis

move the scalp back the pic shows the occipital bone but the muscle is in the same spot