Scapulohumeral rhythm refers to:
A) the changing articular configuration of the humeral head in the glenoid cavity with movement.
B) the protective contractions of the rotator cuff muscles with humeral abduction.
C) the protractive and retractive movements of the scapula that occur with humeral flexion and extension.
D) the association between the movements at the glenohumeral and acromioclavicular joints.
E) the relationship between movements at the glenohumeral and scapulothoracic "joints" during humeral abduction.
Ans: E
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