Intrinsic Hand Muscles Flashcards by Annikka Johnson

Q

Abductor Pollicis Brevis action

A

ABD thumb

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Q

Adductor Pollicis action

A

ADD thumb

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Q

Opponens Pollicis action

A

Opposition of thumb

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Q

Flexor Pollicis Brevis action

A

Flex thumb

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Q

Abductor Digiti Minimi action

A

ABD Digit 5

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Q

Flexor Digiti Minimi Brevis action

A

Flexion of Digit 5

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Q

Opponens Digiti Minimi action

A

Opposition of Digit 5

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Q

Palmaris Brevis action

A

Corrugates skin of palm

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Q

Lumbricals #1-4 action

A

Extend finger at IP joints
Flex MCP joints

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Q

Dorsal Interossei action

A

ABD fingers from center
Assist Lumbricals

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Q

Palmar Interossei action

A

ADD fingers
Assist Lumbricals

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Q

Abductor Pollicis Brevis origin

A

Flexor Retinaculum

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Q

Opponens Pollicis origin

A

flexor retinaculum
scaphoid and trapezium

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Q

Flexor pollicis brevis origin

A

flexor retinaculum
scaphoid & trapezium

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Q

Adductor Pollicis origin

A

MC 2, MC3
Capitate
Trapezoid

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Q

Abductor Digiti Minimi origin

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A

Flexor retinaculum
Pisiform

Q

Flexor Digiti Minimi Brevis origin

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A

Flexor retinaculum
hamate

Q

Opponens digiti minimi origin

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A

flexor retinaculum
hamate

Q

Palmaris brevis origin

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A

palmar aponeurosis

Q

Lumbricals #1-4 origin

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A

flexor digitorum profundus tendon

Q

Dorsal interossei origin

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A

adjacent sides of MCs

Q

Palmar interossei origin

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A

MCs #2, 4, 5

Q

Abductor pollicisi brevis insertion

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A

proximal phalanx of digit 1

Q

Opponens pollicis insertion

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A

MC #1

Flexor pollicis insertion

proximal phalanx of digit 1

Adductor pollicis insertion

proximal phalanx of digit 1

Abductor digiti minimi insertion

proximal phalanx of digit #5

Flexor digiti minimi brevis insertion

proximal phalanx of digit #5

Opponens digiti minimi insertion

MC #5

Palmaris brevis insertion

palmar skin

Lumbricals #1-4 Insertion

Extensor Digitorum tendon

Dorsal Interossei insertion

Proximal phalanx of corresponding finger

Palmar Interossei insertion

proximal phalanges #2, 4, 5