However, an interruption of the embryonic blood supply to the arteries that lie under the collarbone (subclavian arteries) at about the 46th day of embryonic development is the prevailing theory.

A direct hit to the collarbone will also cause a break.

Clavicles are the most common broken bone in the human body.

There is a clavicle on each side of the front, upper part of the chest.

In most cases, x rays will be taken of both clavicle bones for comparison purposes.

Anatomy The clavicle is the bone that connects the trunk of the body to the arm, and it is located directly above the first rib.

Also, sedentary individuals may be at a higher risk due to weakness in muscle stabilizers of the clavicle.

However, a recent study supports primary plate fixation of completely displaced midshaft clavicular fractures in active adult patients.

Also, participation in extreme sports such as mountain biking and snowboarding will increase the risk of a clavicular fracture as well.

Traced upward, it splits to enclose the subclavius, and its two layers are attached to the clavicle, one in front of and the other behind the muscle the latter layer fuses with the deep cervical fascia and with the sheath of the axillary vessels.