What is the clavicle?
The clavicle, or collarbone, is an oblong bone over the top of your chest, between your breastbone (sternum) and shoulder blade (scapula) that connects your shoulder to your trunk. It is easy to feel the clavicle, because unlike other bones which are covered with muscle, only skin covers a large part of the bone.
The clavicle, or collar bone, is the long curving bone connecting the sternum (breast bone) to the shoulder. In fact, it is the only real bony connection between the arm and the rest of the body. A number of ligaments attach to the clavicle to connect the clavicle to the scapula (shoulder blade), the sternum (breast bone), and the ribs.