III.FUNCTIONAL MOVEMENT OF THE HAND

A. WRIST JOINTS

1. extension (0-70°) ECRL, ECRB, ECU
2. flexion (0-70°) FCU, FCR, PL
3. radial deviation (0-20°) ECRL, ECRB, FCR
4. ulnar deviation (0-30°) ECU, FCU

B. METACARPAL PHALANGEAL JOINTS - DIGITS II-V

1. flexion (0-90°) - lumbricals, interossei
2. extension (0-15°) - extensor digitorum
3. abduction - dorsal interossei
4. adduction - palmar interossei

C. THUMB CARPOMETACARPAL JOINTS

1. opposition - opponens pollicis
2. flexion - abductor pollicis brevis, flexor pollicis brevis
3. abduction - AbPL, AbPB
4. adduction - AdP
5. extension - EPB

D. THUMB METACARPAL-PHALANGEAL JOINT

1. flexion (0-50°) FPB
2. extension - EPB

E. THUMB INTERPHALANGEAL JOINT

1. flexion (0-60°) - FPL
2. extension - EPL

F. DIGITS II-V PROXIMAL INTERPHALANGEAL JOINT

1. flexion (0-110°) - FDS
2. extension - lumbricals, interossei, ED, dorsal hood apparatus, EIP, EDMP

G. DIGITS II-V DISTAL INTERPHALANGEAL JOINTS

1. flexion (0-70°) - FDP
2. extension - ED, lumbricales, interossei