muscles of the face

only need to know actions

occipitofrontalis

raises eyebrows and pulls scalp backward

orbicularis oculi

closes eye

corrugator supercilia

draw eyebrows together and down

levator labii superioris

opens lips

zygomaticus major

raises lateral corners of mouth upward

zygomaticus minor

raises lateral corners of mouth upward

risorius

draws corner of lip laterally

depressor anguli oris

draw corners of mouth down and laterally

depressor labii inferioris

draws lower lip inferiorly

mentalis

winkles chin

buccinator

compresses cheek

platysma

tenses skin of neck

masseter

prime mover of jaw closure

temporalis

closes jaw

medial pterygoid

acts with lateral pterygoid muscle to protrude the mandible and promote side-to-side (grinding) movements

lateral pterygoid

provides forward sliding and side-to-side grinding movements of the lower teeth

genioglossus

protracts tongue

hypoglossus

depresses tongue

styloglossus

retracts and elevates tongue

digastric

open mouth and depresses mandible

mylohyoid

elevates hyoid bone and floor of mouth

sternohyoid

depresses larynx and hyoid bone of mandible is fixed

sternohyoid

pulls larynx and hyoid bone inferiorly