Scapula

The scapula is the shoulder bone.

Location of the scapula

The scapula is a chest bone closely connected to the clavicle with which it shares a joint (acromioclavicular joint) and the humerus, the upper arm bone (scapulohumeral joint). The scapula is located posteriorly against ribs 2 to 7.

Structure of the scapula

The scapula is an asymmetrical, flat, triangular bone. It therefore has an anterior and a posterior surface.

Function of the scapula

The scapula and the clavicle form the scapula girdle which provides the upper arm joint with a wide amplitude of movement.