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Anatomy Heart & Neck
| Term | Definition |
|---|---|
| Orbicularis Oculi Origin | Maxillary and frontal bones |
| Orbicularis Oculi Insertion | Skin around eye |
| Orbicularis Oculi Action | Blinking |
| Orbicularis Oris Origin | Muscles near mouth |
| Orbicularis Oris Insertion | Skin of lips |
| Orbicularis Oris Action | lips for kissing |
| Nasalis Origin | Maxilla lateral to nose |
| Nasalis Insertion | Bridge of nose |
| Nasalis Action | Widens nostrils |
| Zygomaticus Major Origin | Zygomatic bone |
| Zygomaticus Major Insertion | Corner of mouth |
| Zygomaticus Major Action | Smiling and laughing |
| Buccinator Origin | Lateral surfaces of maxilla and mandible |
| Buccinator Insertion | Orbicularis oris |
| Buccinator Action | blowing air |
| Masseter Origin | Lower border of zygomatic arch |
| Masseter Insertion | Lateral surface of mandible |
| Masseter Action | Elevates mandible |
| Temporalis Origin | Temporal bone |
| Temporalis Insertion | Coronoid process |
| Temporalis Action | Elevates mandible |
| Sternocleidomastoid Origin | Manubrium of sternum and medial clavicle |
| Sternocleidomastoid Insertion | Mastoid process of temporal bone |
| Sternocleidomastoid Action | Rotation of head to left or right |
| Splenium capitis Origin | Spinous processes of C7-T6 |
| Splenium capitis Insertion | Mastoid process and occipital bone |
| Splenium capitis Action | rotates head |
| Semispinalis capitis Origin | Processes of inferior cervical and superior thoracic vertebrae |
| Semispinalis capitis Insertion | Occipital bone |
| Semispinalis capitis Action | Rotates head |
| Digastric Origin | Inferior mandible (anterior belly) and mastoid process (posterior belly) |
| Digastric Insertion | Hyoid bone |
| Digastric Action | Opens mouth |
| Mylohyoid Origin | Mandible |
| Mylohyoid Insertion | Hyoid bone |
| Mylohyoid Action | swallowing |