Muscles of Mastication
| Muscle | Origin | Insertion | Action |
Temporalis | Temporal bone Parietal bone | Coronoid process | Elevates jaw Retracts jaw |
| Masseter | Zygomatic arch | Mandibular angle | Elevates jaw |
| Lateral Pterygoid (Superior Head) | Sphenoid bone | Temporomandibular Disk | Draws articular disk forward |
| Lateral Pterygoid (Inferior Head) | Lateral Side of Lateral Pterygoid Plate | Mandibular neck | (bilaterally) Protracts jaw (unilaterally) Abducts jaw (grinding) |
| Medial Pterygoid | Medial Side of Lateral Pterygoid Plate | Mandibular angle | Elevates jaw |
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