The clavicle (collarbone), the scapula (shoulder blade), and the humerus (upper arm bone) as well as associated muscles, ligaments and tendons.. The shoulder joint (glenohumeral joint) is a ball and socket joint between the scapula and the humerus.
Learn about shoulder anatomy & function including shoulder bones, ligaments & muscles.. The shoulder joint is made up of four joints that work together for movement and stability.