Which is (are)an action of the sternocleidomastoid?
A)contralateral rotation of the neck and head at the spinal joints
B)retraction (adduction)of the scapula at the scapulocostal joint
C)medial rotation of the arm at the glenohumeral joint
D)ipsilateral rotation of the neck and head at the spinal joints

Question

Quizplus · Accepted Answer

The sternocleidomastoid muscle is responsible for contralateral rotation of the neck and head at the spinal joints.

Which Is (Are)an Action of the Sternocleidomastoid