Motion Specific Release

The sternocleidomastoid (SCM) is a paired, superficial muscle of the anterolateral neck. Its sternal and clavicular heads arise from the manubrium and medial clavicle and ascend to the mastoid process and lateral superior nuchal line. This oblique course makes the SCM a palpable landmark for distinguishing the anterior and posterior cervical triangles.

For the practitioner, the question is how the levator scapulae is contributing to the task and whether the examination supports treating it. We’ll review its anatomy and functional relationships, then apply those findings to MSR procedure selection, exercise, and reassessment.