Clavicle

Clavicle. The clavicle connects the upper limb to the trunk of the body and provides attachments for several muscles and ligaments. The clavicle is a long, slender bone located anteriorly that extends transversely from the sternum to the acromion of the scapula. The widened sternal end of the clavicle articulates with the manu- brium of the sternum to form the sternoclavicular (SC) joint, and its flattened acromial end articulates with the acromion process of the scapula to form the acro- mioclavicular (AC) joint. The medial two thirds of the body of the clavicle are anteriorly convex, whereas the lateral one third is flattened and anteriorly concave (Figures 9.2 through 9.6).