A ball-and-socket joint, your shoulder is made up of three bones; the upper arm bone (humerus), shoulder blade (scapula) and collarbone (clavicle).
The ball at the top end of the arm bone fits into the small socket (glenoid) of the shoulder blade to form the shoulder joint (glenohumeral joint). The head of the humerus glides against the socket in the shoulder blade enabling you to raise, twist and bend your arm and to move it forward to the side and behind you.
Your shoulder rotates through a much greater range of motion than any other joint in the body. There are many shoulder and arm conditions that can cause you pain.
Common shoulder and arm conditions include:
- Shoulder Pain
- Arm Pain
- Frozen Shoulder
- Separated Shoulder, (Image)
- Dislocated Shoulder
- Rotor Cuff Injuries
- Brachial Plexus Injury