False about sternocleidomastoid is
Actions of sternocleidomastoid - When one sternocleidomastoid muscle contracts, a) It turn the chin to the opposite side, b) It can also tilt the head towards the shoulder of same side Ref : B D Chaurasia's Human Anatomy , sixth edition, volume 3 , pg. no. 89
Arises from sternum and clavicle
Inses on mastoid process
Motor supply by spinal accessory nerve
Tilt the head on opposite side
Head and neck