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Anatomy > Intrinsic Palmar Hand Muscles > Flashcards

Intrinsic Palmar Hand Muscles Flashcards

1
Q

Origin for abductor pollicis brevis

A

Flexor retinaculum, scaphoid, and trapezium

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2
Q

Insertion for abductor pollicis brevis

A

Proximal phalanx of thumb

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3
Q

Blood for abductor pollicis brevis

A

Superficial palmar branch of radial artery

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4
Q

Nerve for abductor pollicis brevis

A

Median nerve

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5
Q

Action for abductor pollicis brevis

A

Abducts thumb

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6
Q

Origin for flexor pollicis brevis

A

Flexor retinaculum, trapezium

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7
Q

Insertion for flexor pollicis brevis

A

Proximal phalanx of thumb

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8
Q

Blood for flexor pollicis brevis

A

Superficial palmar branch of radial artery

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9
Q

Nerve for flexor pollicis brevis

A

Median nerve

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10
Q

Action for flexor pollicis brevis

A

Flexes proximal phalanx of thumb

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11
Q

Origin for opponens pollicis

A

Flexor retinaculum, trapezium

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12
Q

Insertion for opponens pollicis

A

MC1

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13
Q

Blood for opponens pollicis

A

Superficial palmar branch of radial artery

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14
Q

Nerve for opponens pollicis

A

Median nerve

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15
Q

Action for opponens pollicis

A

Opposes thumb

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16
Q

Origin for adductor pollicis

A

MC2-3

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17
Q

Insertion for adductor pollicis

A

Proximal phalanx of thumb

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18
Q

Blood for adductor pollicis

A

Deep palmar arch of radial artery

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19
Q

Nerve for adductor pollicis

A

Ulnar nerve

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20
Q

Action for adductor pollicis

A

Adducts thumb

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21
Q

Origin for palmaris brevis

A

Palmar aponeurosis

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22
Q

Insertion for palmaris brevis

A

Skin of ulnar border of palm (hypothenar eminence)

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23
Q

Blood for palmaris brevis

A

Superficial palmar arch

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24
Q

Nerve for palmaris brevis

A

Ulnar nerve

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25
Q

Action for palmaris brevis

A

Tightens the palmar aponeurosis, improves grip

26
Q

Origin for abductor digiti minimi

27
Q

Insertion for abductor digiti minimi

A

Proximal phalanx of digit 5

28
Q

Blood for abductor digiti minimi

A

Deep palmar branch of ulnar artery

29
Q

Nerve for abductor digiti minimi

A

Ulnar nerve

30
Q

Action for abductor digiti minimi

A

Abducts digit 5

31
Q

Origin for flexor digiti minimi brevis

A

Hook and hamate, flexor retinaculum

32
Q

Insertion for flexor digiti minimi brevis

A

Proximal phalanx of digit 5

33
Q

Blood for flexor digiti minimi brevis

A

Deep palmar branch of ulnar artery

34
Q

Nerve for flexor digiti minimi brevis

A

Ulnar nerve

35
Q

Action for flexor digiti minimi brevis

A

Flexes proximal phalanx of digit 5

36
Q

Origin for opponens digiti minimi

A

Hook of hamate, flexor retinaculum

37
Q

Insertion for opponens digiti minimi

38
Q

Blood for opponens digiti minimi

A

Deep palmar branch of ulnar artery

39
Q

Nerve for opponens digiti minimi

A

Ulnar nerve

40
Q

Action for opponens digiti minimi

A

Opposes digit 5

41
Q

Origin for lumbricals (1 & 2)

A

Lateral two tendons of flexor digitorum profundus

42
Q

Insertion for lumbricals (1 & 2)

A

Extensor expansions digits 2-5

43
Q

Blood for lumbricals (1 & 2)

A

Superficial and deep palmar arches

44
Q

Nerve for lumbricals (1 & 2)

A

Median nerve

45
Q

Action for lumbricals (1 & 2)

A

Extends digits at interphalangeal joints and flexes metacarpophalangeal joints

46
Q

Origin for lumbricals (3 & 4)

A

Medial three tendons of flexor digitorum profundus

47
Q

Insertion for lumbricals (3 & 4)

A

Extensor expansions digits 2-5

48
Q

Blood for lumbricals (3 & 4)

A

Superficial and deep palmar arches

49
Q

Nerve for lumbricals (3 & 4)

A

Ulnar nerve

50
Q

Action for lumbricals (3 & 4)

A

Extends digits at interphalangeal joints and flexes metacarpophalangeal joints

51
Q

Origin for dorsal interossei

A

Adjacent sides of metacarpal bones

52
Q

Insertion for dorsal interossei

A

Proximal phalanx and extensor expansion of digits 2-4

53
Q

Blood for dorsal interossei

A

Deep branch of ulnar artery

54
Q

Nerve for dorsal interossei

A

Ulnar nerve

55
Q

Action for dorsal interossei

A

Abducts digits from axial line (digit 3) of hand

56
Q

Origin for palmar interossei

A

Palmar surfaces of MC2, 4, 5

57
Q

Insertion for palmar interossei

A

Proximal phalanx and extensor expansion of digits 2, 4, 5

58
Q

Blood for palmar interossei

A

Deep palmar arch (radial artery)

59
Q

Nerve for palmar interossei

A

Ulnar nerve

60
Q

Action for palmar interossei

A

Adducts digits toward axial line (digit 3) of hand

Anatomy (8 decks)

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