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Fig. 2 Subjective drawing (not based on cadaveric model) of normal
dynamic shoulder evaluation. Drawing (coronal plane, cut section) of left
shoulder during active elevation of arm halfway between flexion and abduction
with hand in pronation shows normal relationships between acromion (A),
greater tuberosity (T) of humeral head, and intervening soft
tissuesnamely, supraspinatus tendon (S) and subacromial-subdeltoid
bursa (arrow). D = deltoid muscle.