Muscles of the Shoulder Girdle Actions Game

Note: G/H is the abbreviation used for the glenohumeral (shoulder) joint. S/T is the abbreviation used for the Scapulo-thoracic joint (the scapula against the ribs, or "just the scapula" if it helps you to think of it that way). H/U is the abbreviation for Humero-ulnar (elbow) joint. S/C is the abbreviation for the Sterno-clavicular joint (between the sternum and the clavicle). R/U is the abbreviation for the radioulnar joint, the pivot joint of the radius on the ulna (supination/pronation of the forearm happens at this joint)