Anatomy upper extremity muscles
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| Extensor Carpi ulnaris | P.M. - U.D.
Action - Wrist extension/U.D.
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| Extensor carpi radialis longus | P.M. - Extension/R.D.
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| Flexor Carpi Radialis | P.M. - U.D.
Action - wrist flexion/U.D.
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| Flexor carpi radialis | P.M. - wrist Flexion/R.D. (golfer's elbow)
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| flexor digitorium profundus | DIP flexion of 4 fingers
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| flexor digitorium sublimis | PIP flexion of 4 fingers; wrist flexion
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| extensor digitorium communis | MP extension of 4 fingers; wrist extension
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| extensor indicus proprius | MP extension of index finger
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| extensor digiti minimi | MP extension of pinky
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| flexor pollicis longus | DIP flexion of thumb
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| flexor pollicis brevis | MP flexion of thumb
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| extensor pollicis longus | DIP extension of thumb; wrist R.D.
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| extensor pollicis brevis | MP extension of thumb; abduction of thumb
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| opponens pollicis | Thumb opposition (flexion and adduction)
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| opponens digiti minimi | 5th finger opposition
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| adductor pollicis | Thumb adduction
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| abductor pollicis longus | Thumb abduction/extension
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| abductor pollicis brevis | thumb abduction
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| abductor digiti minimi | abduction of the 5th finger (pinky)
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| dorsal interossei | abduction of the 2nd 4th and 5th fingers
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| ventral interossei | adduction of the 2nd 4th and 5th fingers
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| lumbricales | MP flexion
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| brachioradialis | elbow flexion/supination/semisupination (flexion with hand in natural position)
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| Deltoid | P.M. - shoulder flexion/abduction
Action - shoulder flexion/abduction/IR/ER
Part of S-I-T muscles
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| supraspinatus | P.M. - Shoulder ER
Action - Shoulder abduction (above 90) IR
Part of S-I-T muscles
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| Infraspinatus | P.M. - shoulder ER (Part of S-I-T muscles)
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| Teres Minor | P.M. Shoulder ER
Part of S-I-T muscles
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| Subscapularis | Shoulder IR ("Rotator Cuff = SIT muscles)
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| Teres Major | P.M. - Shoudler IR
Action - Shoulder IR/extension/adduction
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| coracobrachialis | Shoulder flexion/adduction
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| Biceps brachii | P.M. - Elbow Flexion
Action - Shoulder/elbow flexion; supination
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| Triceps | P.M. - Elbow Extension
Action - Shoulder/elbow Extension
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| Supinator | Elbow Supination
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| pronator quadratus | elbow pronation
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| brachialis | elbow flexion
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