Sternocleidomastoid


Summary

Location: In the neck, running diagonally from the base of the skull to the clavicle and sternum.

Information

Group: Neck
Side(s) of body: Front, Back
Function/action: Neck Flexor, Head Rotator, Head Lateral Flexor

Details

Joint: Cervical
Bone: Sternum, Clavicle, Temporal Bone
Origin: Sternal head: Manubrium; Clavicular head: Medial third of clavicle.
Insertion: Mastoid process and lateral half of superior nuchal line.

Exercises

Primary muscle in: Neck Curl, Neck Extension