Anatomy
Rounded upper extremity of humerus; articulates with scapula at glenoid cavity/fossa.
Vignette
Shoulder is most mobile joint; flexion 150-170°, extension 40°, abduction 160-180°, adduction 30-40°, lateral rotation (in abduction) 95° (in adduction) 70°; medial rotation (in abduction) 40-50° (in adduction) 70°.
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