Origin: manubrium, clavicle
Insertion: mastoid process of temporal bone
Action: bilateral activation flexes neck, unilaterally tilts face upward toward opposite side
Joint/s Moved: neck
Bone of Origin: sternum, clavicle
Bone of Insertion: temporal
Link: Get Body Smart
Click on HEAd and NECK and then on STERNOCLEIDOMASTOID
Insertion: mastoid process of temporal bone
Action: bilateral activation flexes neck, unilaterally tilts face upward toward opposite side
Joint/s Moved: neck
Bone of Origin: sternum, clavicle
Bone of Insertion: temporal
Link: Get Body Smart
Click on HEAd and NECK and then on STERNOCLEIDOMASTOID