Forearm & Hand Muscles Action Flashcards by Kaitlyn Pascua

Q

extensor carpi radialis longus and brevis

A

wrist extension
radial deviation

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Q

extensor digitorum

A

extends MCP joints + IP joints 2-5th digits

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Q

extensor digiti minimi

A

extends MCP joints + IP joints of 5th digit

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Q

extensor carpi ulnaris

A

wrist extension and ulnar deviation

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Q

abductor pollicis longus

A

1st digit abd
extension at CMC joint

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Q

extensor pollicis brevis + longus

A

1st digit extension at MCP + IP joints

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Q

extensor indicis

A

2nd digit extension
wrist extension

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Q

supinator

A

forearm supination

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Q

pronator teres

A

forearm pronation
elbow flexion

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Q

flexor carpi radialis

A

wrist flexion + radial deviation

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Q

palmaris longus

A

wrist flexion

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Q

flexor carpi ulnaris

A

wrist flexion + ulnar deviation

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Q

flexor digitorum superficialis

A

flexion of PIP joints

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Q

flexor pollicis longus

A

flexion of distal phalanx of thumb

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Q

flexor digitorum profundus

A

wrist flex
flex all joint to DIP in digits 2-5

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Q

pronator quadratus

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A

forearm pronation

Q

abductor pollicis brevis

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A

abd of thumb at MCP + CMC joints

Q

flexor pollicis brevis

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A

flex thumb

Q

opponens pollicis

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A

opposition of thumb

Q

adductor pollicis

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A

adduction of thumb

Q

abductor digit minimi

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A

abduction of little finger at MCP joint

Q

flexor digiti minimi

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A

flexion of little finger

Q

opponens digiti minimi

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A

flexion of 5th metacarpal, lateral rotation producing opposition

Q

lumbricals of the hand

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A

flexion at MCP
extension at IP

dorsal interossei

abduction of 2-4 digits away from middle finger

palmar interossei

adduction of 2, 4, 5 digits towards middle finger flexion of digits at MCP extension at IP