| Term | Definition |
| Digastricus | raises hyoid bone or when the hyoid is fixed aids in depressing the jaw |
| Mylohhyoid | corpus of the hyoid bone, elevate the tongue and depress the mandible |
| Geniohyoid | anterior surface of the hyoid, assists in elevating the larynx or depressing the mandible |
| Lateral Pterygoid | pterygoid fossa, protrudes the mandible causing the condyle to slide down and forward |
| Masseter | inserts into the angle and lateral surface of the ramus, also insertsinto upper half of ramus, closes the jaw, part of Mandibular sling |
| Temporalis | anterior border of ramus and coronoid process, some fibers act in elevating the mandible, others in retraction |
| Medial Pterygoid | medial surface of the ramus and angle of the mandible, closes jaw, part of Mandibular sling |