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temporalis origin
temporal fossa
temporalis insertion
coronoid process, mandibular ramus
temporalis action
elevates and retracts mandible
masseter origin
zygomatic arch
masseter insertion
lateral ramus of mandible
masseter action
elevates and protracts mandible
pterygoids origin
pterygoid plate of sphenoid bone
pterygoids insertion
medial ramus and condylar process of mandible
pterygoids action
protracts, elevates, and depresses mandible