MMT Prime Movers

shoulder flexion

anterior deltoid, pectoralis major, biceps brachii

shoulder extension

posterior deltoid, latissimus dorsi

shoulder abduction

deltoid, supraspinatus

shoulder adduction

pectoralis major, latissimus dorsi, teres major

shoulder horizontal adduction

pectoralis major, anterior deltoid

shoulder horizontal abduction

posterior deltoid

shoulder external rotation

posterior deltoid, infraspinatus, teres minor

shoulder internal rotation

subscapularis, teres major, anterior deltoid

elbow flexion

brachialis, biceps brachii, brachioradialis

elbow extension

triceps brachii, aconeus

forearm pronation

pronator teres, pronator quadratus

forearm supination

biceps brachii, supinator

wrist flexion

flexor carpi radialis, flexor carpi ulnaris

wrist extension

extensor carpi radialis longus, extensor carpi radialis brevis, extensor carpi ulnaris

radial deviation

extensor carpi radialis longus, extensor carpi radialis brevis, flexor carpi radialis

ulnar deviation

extensor carpi ulnaris, flexor carpi ulnaris

MCP flexion

interossei, lumbricals, flexor digitorum superficialis, flexor digitorum profundus

MCP extension

extensor digitorum, extensor indicis, extensor digiti minimi

MCP abduction

dorsal interossei

MCP adduction

palmar interossei

PIP flexion

flexor digitorum superficialis, flexor digitorum profundus

PIP extension

interossei, lumbricals, extensor digitorum (central slip)

DIP flexion

flexor digitorum profundus

DIP extension

interossei, lumbricals, extensor digitorum (terminal tendon)

Thumb CMC flexion

flexor pollicis longus, flexor pollicis brevis

Thumb CMC extension

extensor pollicis brevis, extensor pollicis longus, abductor pollicis longus

Thumb CMC palmar abduction

abductor pollicis longus, abductor pollicis brevis

Thumb CMC radial abduction

abductor pollicis longus, extensor pollicis brevis, abductor pollicis brevis, extensor pollicis longus

Thumb MCP flexion

flexor pollicis longus, flexor pollicis brevis

Thumb MCP extension

extensor pollicis brevis, extensor pollicis longus

Thumb IP flexion

flexor pollicis longus

Thumb IP extension

extensor pollicis longus