Scapulothoracic Articulation
Normally there is considerable soft tissue flexibility, allowing the scapula to slide along the thorax and participate in all upper extremity motions.
Motions of the Scapula
Motions of the scapula are:
• Elevation, depression, protraction (abduction), and retraction (adduction), with clavicular motions at the SC joint are also component motions when the humerus moves.
• Upward and downward […]

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