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Head Muscles

Muscle Actions

occipitofrontalis moves scalp & eyebrows; wrinkles skin of forehead
obicularis oculi closes eye; produces winking, blinking, and squinting
epicranius scalp muscle
obicularis oris compresses and purses lips (kiss)
zygomaticus major elevates corners of mouth (smile)
depressor anguli oris draws corners of mouth inferiorly and laterally (frown)
levator labii superioris opens lips; raises and furrows the upper lip
depressor labii inferioris draws lower lip inferiorly
nasalis compresses bridge and depresses tip of nose; elevates corners of nostrils
buccinator compresses cheek, holds food between teeth during chewing
masseter elevates and protracts mandible; prime mover of mandible elevation
medial pterygoid elevates and protracts mandible; produces side to side movement of mandible
lateral pterygoid protracts mandible; produces side-to-side movement of mandible
temporalis elevates and retracts mandible
mentalis protudes lower lip, wrinkles chin (pout)
Created by: ahasenmu



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