Labels:hakham | reckoner | web site OCR: STERNOCLEIDO MASTOID HE STERNOCLEIDOMASTOIDS are two muscles found in your neck one on each side Each muscle IS double -headed at its lower end, where it attaches the collarbone and the breastbone. The other end is fixed to the base ofthe skull. W orking together, these muscles bend the neck and pull the head forwards; wor rking alone they tilt and turn the head from side to side. forw ards
