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Gross Anatomy - ML > Intrinsic Muscles Of The Hand > Flashcards

Intrinsic Muscles Of The Hand Flashcards

1
Q

Abductor Pollicis Brevis action

A

Abduct the thumb, assist with opposition

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2
Q

Flexor Pollicis Brevis innervation

A

Recurrent branch of median

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3
Q

Abductor Pollicis Brevis innervation

A

Recurrent branch of median

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4
Q

Flexor Pollicis Brevis action

A

Flex the thumb at the MCP and CMC joints, aid in opposition

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5
Q

Opponens Pollicis innervation

A

Recurrent branch of median

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6
Q

Opponens Pollicis action

A

Opposition; draws thumb toward palm and rotates it medially

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7
Q

Abductor digiti minimi innervation

A

Deep branch of ulnar

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8
Q

Abductor digiti minimi action

A

Abducts little finger & helps flex MCP of little finger

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9
Q

Flexor digiti minimi innervation

A

Deep branch of ulnar

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10
Q

Flexor digiti minimi action

A

Flex MCP of little finger

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11
Q

Opponens digiti minimi innervation

A

Deep branch of ulnar

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12
Q

Opponens digiti minimi action

A

Draws the 5th MCP forward and rotates it laterally

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13
Q

Palmaris Brevis innervation

A

Superficial ulnar

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14
Q

Palmaris Brevis action

A

Wrinkles skin on medial aspect of Palm; deepens hollow of hand

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15
Q

Adductor pollicis innervation

A

Deep branch of ulnar

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16
Q

Adductor Pollicis action

A

Adductor thumb and assist in power grip by moving proximal phalanx of the thumb at the metacarpophalangeal joint and the first metacarpal at the first carpometacarpal joint

17
Q

Lumbricals innervation

A

Lateral 2 = median

Medial 2 = deep ulnar

18
Q

Lumbricals action

A

Flex the MCP & extend the IP joints of the medial 4 digits

19
Q

Dorsal Interossei innervation

A

Deep ulnar

20
Q

Dorsal interossei action

A

Abduction of index, middle and ring fingers and assist lumbricals

21
Q

Palmar interossei innervation

A

Deep ulnar

22
Q

Palmar Interossei action

A

Addiction of index, ring and little fingers and assist lumbricals

Gross Anatomy - ML (6 decks)

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