Pectoral Girdle

Each of the two pectoral (shoulder) girdles consists of two bones: the S‐shaped clavicle and the flat, triangular scapula. The clavicle articulates with the sternum and the scapula. In turn, the scapula articulates with the humerus of the arm. Figure 1 illustrates details of these bones.

Figure 1.The pectoral girdle.

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