Answer
Statement 3 is **true**. The sternocleidomastoid muscle has its origin at the mastoid process of the skull. It also has another attachment point at the sternum (sterno-) and clavicle (cleido-), which gives it its name. This muscle plays a crucial role in head movements and neck stability.
Work Step by Step
Statement 3 is **true**. The sternocleidomastoid muscle has its origin at the mastoid process of the skull. It also has another attachment point at the sternum (sterno-) and clavicle (cleido-), which gives it its name. This muscle plays a crucial role in head movements and neck stability.