42 36 37 43 44 45 38 46 39 40 47 48 41 49 50 Figure 6.4. Left Upper Extremity, Anterior (A); Posterior (B) Figure 6.4 A. Abductor pollicis longus B. Biceps long head C. Biceps short head D. Brachialis E. Brachioradialis AB. Extensor carpi radialis AC. Extensor carpi ulnaris AD. Extensor digitorum AE. Extensor pollicis brevis BC. Flexor carpi radialis BD. Flexor carpi ulnaris BE. Triceps lateral head CD. Triceps long head CE. Triceps medial head

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