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MuscleOrigin and InsertionAction
Masseter (O) Zygomatic arch (I) Angle and ramus of mandible Elevates Mandible
Obicularis Occuli (O) Frontal and maxillary bones and ligaments around orbit (I) Tissue of eyelid Closes eyelid
Obicularis Oris (O) Muscles surrounding mouth (I) Skin surrounding mouth Closes and protrudes lip
Sternocleidomsatoid (O) Manubrium; medial portion of clavical (I) Mastoid process Flexes and rotates head
Temporalis (O) Temporal fossa (I) Coronoid process and ramus of mandible Elevates and retracts mandible
Zygomaticus (Major and Minor) (O) Inferior border of zygomatic (I) Skin and muscle at angle of mouth Raises angle of mouth
Depressor Labii (O) Body of mandible lateral to its midline (I) Skin and muscle of lower lip Depresses lower lip
Created by: RachReile