Answer:
The shoulder girdle, or also known as the pectoral girdle, consists of not 3, but 4 bones. These bones include 2 scapulae and 2 clavicles. The scapula is a large bone that is triangular and flat and is found on the back side of the rib cage. The clavicle is a slender "s" shaped bone which is also called the collarbone. The clavicle connects the upper arm to the trunk of the body.