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Hand Muscles

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Muscle
Action
flexor digitorum profundus (FDP)   DIP flexion of 4 fingers  
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flexor digitorum sublimis (superficials)   PIP flexion of 4 fingers; wrist flexion  
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extensor digitorum 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 little finger  
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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 radial deviation  
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extensor pollicis brevis   MP extension of thumb, abduction of 1st metacarpal  
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opponens pollicis   thumb opposition (flexion w/ 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 5th finger  
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ventral interossei   adduction of 2nd, 4th and 5th fingers  
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dorsal interossei   abduction of 2nd, 4th and 5th fingers  
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lumbricales   MP flexion; DIP and PIP extension of 4 fingers  
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Created by: MTaylor10
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