This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Movements taking place during abduction of shoulder joint are all except? 
Select and explain. 
A. Medial rotation of scapula, B. Axial rotation of humerus at acromioclavicular joint, C. Elevation of humerus, D. Movements at clavicular end of sternoclavicular joint
A: Medial rotation of scapula
Answer: A: Medial rotation of scapula 
Explanation: Medial rotation of scapula. Abduction of the ann involves rotation of the scapula as well as movement at the shoulder joint. For every 3deg abduction, a 2 deg abduction occurs in the shoulder joint & 1 deg abduction occurs by rotation of the scapula Also know: Abduction is initiated by the supraspinatus but the deltoid muscle is the main abductor.