Abstract
Shoulder motion is provided by several articulations, including the glenohumeral, acromioclavicular, sternoclavicular, and scapulothoracic joints. The glenohumeral joint has the greatest range of motion of any joint in the body. This unique ability is required so that the upper extremity can be positioned in space for hand function. The downside to this tremendous mobility is that it puts the glenohumeral joint at greater risk for instability. This chapter will review the clinical anatomy and biomechanics of the shoulder including the bony passive stabilizers, soft-t issue passive, and soft-t issue active stabilizers that play a role in allowing substantial range of motion while providing stability. © 2021 Taylor & Francis Group, LLC.