5. Using picture set #3 as a continuous motion: man standing with arms extended in front of him #3A man standing with arms holding looped ropes pulled to body #3B man standing with arms extended in front of him #3C a. From B to C what action is occurring at the elbow? * extension b. From A to B what elbow musculature is working? * Biceps Brachii, Brachialis, Brachioradialis c. HOW is the elbow musculature contracting from A to B? * concentrically d. Assuming he does not release the bands, HOW are the finger muscles acting throughout the motion? * isometrically e. From B to C what elbow muscles are acting? * Biceps Brachii, Brachialis, Brachioradialis, Triceps Brachii 4 words f. HOW is the glenohumeral joint musculature acting from B to C