Pectoral Girdle The pectoral girdle consists of the clavicle and the scapula, which serve to attach the upper limb to the sternum of the axial skeleton. The scapula(shoulder blade) lies on the posterior aspect of the shoulder. It is supported by the clavicle, which also articulates with the humerus (arm bone) to form the shoulder joint.
The right and left pectoral girdles are not joined to each other, allowing each to operate independently. In addition, the clavicle of each pectoral girdleis anchored to the axial skeleton by a single, highly mobile joint.
The bones that attach each upper limb to the axial skeleton form the pectoral girdle (shoulder girdle). This consists of two bones, the scapula and clavicle ( (Figure) ). The clavicle (collarbone) is an S-shaped bone located on the anterior side of the shoulder.Pectoral Girdles Diagram Image Diagram - Chart - diagrams and charts with labels. This diagram depicts Pectoral Girdles Diagram Image