Q.

In abduction of the arm

A. The clavicle remains fixed
B. The scapula moves dorsally on the chest wall
C. Scapular movement is at first more rapid than movement of the humerus
D. The medial end of the clavicle moves downward on the intra-articular disc
E. Medial rotation of the humerus occurs
Answer» D. The medial end of the clavicle moves downward on the intra-articular disc
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