Quiz 9: The Upper Limb
B Explanation: Scapula and clavicle. The shoulder girdle consists of two bones, the scapula (shoulder blade) and the clavicle (collarbone).
D Explanation: Humerus. The humerus is the only bone of the upper arm. The radius and ulna are bones of the forearm.
B Explanation: Olecranon. The olecranon is the superoposterior portion of the trochlear notch of the ulna and forms the bony prominence of the elbow.