Thorax Lab Glossary

Abduction

Accessory hemiazygos v.

Acromioclavicular joint

Acromion

Adduction

Anastomosis

Clavicle

The clavicle or collarbone is a long bone that serves as a strut between the scapula and the sternum. It is the only long bone in the body that lies horizontally. It makes up part of the shoulder and the pectoral girdle, and is palpable in all people; in people who have less fat in this region, the location of the bone is clearly visible, as it creates a bulge in the skin.

The medial ends of the clavicles articulate with the sternum at the sternoclavicular joint, while the lateral ends of the clavicles articulate with the acromion of the scapula at the acromioclavicular joints.