The Healthy Shoulder
The shoulder is a combination of the glenohumeral and the acromioclavicular joints, both of which rely on surrounding muscles, ligaments, and connective tissues for proper function. Here is a brief overview of the properties of a healthy shoulder.
- The human shoulder is composed of the clavicle (collarbone), the scapula (shoulder blade), and the humerus (upper arm bone).
- These bones are held together by the rotator cuff, bicep tendons, and ligaments, and are separated by a shock-absorbing layer of smooth articular cartilage.
- The cartilage allows the bones to stabilize, permitting the joint to move freely.