| Term | Definition |
|
Sternomastoid |
Origin - Manubrium of sternum. Insertion - Lambroidal ridge of skull. Action - Turns head. |
|
Sternohyoid |
Origin - First costal cartilage. Insertion - Body of hyoid. Action - Draws hyoid posteriorly. |
|
Digastric |
Origin - Occipital bone of skull. Insertion - Ventral border of mandible. Action - Depresses lower jaw. |
|
Mylohyoid |
Origin - Inner surface of mandible. Insertion - Median raphe. Action - Raises floor of mouth. |
|
Stylohyoid |
Origin - Stylohyal bone of hyoid. Insertion - Body of hyoid. Action - Raises hyoid. |
|
Masseter |
Origin - Zygomatic arch. Insertion - Mandible. Action - Elevates mandible. |
|
Temporalis |
Origin - Surface of temporal fossa. Insertion - Coronoid process of mandible. Action - Elevates mandible. |