Shoulder Bone Anatomy Diagram. Like most synovial joints the articulating surfaces are. The scapula is part of the shoulder girdle which also includes muscle and ligament that allow your shoulder to move.
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The scapula or shoulder blade is a large bone in the upper back. The shoulder joint is formed where the humerus upper arm bone fits into the scapula shoulder blade like a ball and socket. The shoulder has about eight muscles that attach to the scapula humerus and clavicle.
It provides structural support between the shoulder and the rest of the skeleton and is one of the most frequently fractured bones in the body.
The bones of the shoulder girdle include the scapula the humerus and the clavicle. Bones of the Shoulder Girdle Click on image for larger labeled picture. It has joints on both ends which can become arthritic. These muscles form the outer shape of the shoulder and underarm.
