wrist/hand muscles (intrinsic) Flashcards by ash thomas

Q

abductor pollicis brevis origin

A

flexor retinaculum, scaphoid, trapezium

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Q

abductor pollicis brevis insertion

A

proximal phalanx of thumb

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Q

abductor pollicis brevis action

A

thumb abduction

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Q

abductor pollicis brevis nerve

A

median

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Q

opponens pollicis origin

A

flexor retinaculum, trapezium

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Q

opponens pollicis insertion

A

1st metacarpal

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Q

opponens pollicis action

A

opposition of thumb

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Q

opponens pollicis nerve

A

median

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Q

flexor pollicis brevis origin

A

flexor retinaculum, trapezium, capitate, trapezoid

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Q

flexor pollicis brevis insertion

A

1st proximal phalanx

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Q

flexor pollicis brevis action

A

thumb flexion

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Q

flexor pollicis brevis nerve

A

median

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Q

adductor pollicis origin

A

capitate, 1-3 metacarpals

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Q

adductor pollicis insertion

A

proximal phalanx

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Q

adductor pollicis action

A

thumb adduction

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Q

adductor pollicis nerve

A

ulnar

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Q

Abductor digiti minimi origin

A

pisiform, flexor carpi ulnaris tendon

Q

Abductor digiti minimi insertion

A

5th proximal phalanx

Q

Abductor digiti minimi action

A

abduction and flexion of 5th metacarpophalangeal

Q

Abductor digiti minimi nerve

A

ulnar

Q

Flexor digiti minimi origin

A

flexor retinaculum, hamate

Q

Flexor digiti minimi insertion

A

5th proximal phalanx

Q

Flexor digiti minimi action

A

flexion of 5th carpometacarpal and metacarpophalageal

Q

Flexor digiti minimi nerve

A

ulnar

Opponens digiti minimi origin

flexor retinaculum, hamate

Opponens digiti minimi insertion

5th metacarpal

Opponens digiti minimi action

opposition of 5th digit

Opponens digiti minimi nerve

ulnar

lumbricals origin

flexor digitorum profundus tendon

lumbricals insertion

extensor digitorum tendon

lumbricals action

flex MCP 2-5, extend IP

lumbricals nerve

ulnar

Palmar interossi origin

sides of metacarpal shafts

Palmar interossi insertion

bases of proximal phalanges

Palmar interossi action

adduction fingers 1,2,4,5

Palmar interossi nerve

ulnar

Dorsal interossi origin

sides of metacarpal shafts

Dorsal interossi insertion

proximal phalanges

Dorsal interossi action

finger 2-4 abduction

Dorsal interossi nerve

ulnar