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Anatomy > Wrist and Palmar Hand POINA > Flashcards

Wrist and Palmar Hand POINA Flashcards

1
Q

Flexor Digitorum Superficialis Purposeful Action

A

Brush teeth, comb hair, carrying briefcase (functional grasp and pinch)

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2
Q

Flexor Digitorum Superficialis Main Action

A

-Flex middle phalanges at proximal IP joints at medial 4 digits (stronger)
-Flexes proximal phalanges at MCP joints

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3
Q

Flexor Digitorum Superficialis Proximal Attachment

A

-Humero-ulnar head: medial epicondyle (common flexor origin), coronoid process
-Radial head: superior radius

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4
Q

Flexor Digitorum Superficialis Distal Attachment

A

Shafts of middle phalanges of medial four digits

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5
Q

Flexor Digitorum Superficialis Innervation

A

Median (C7-T1)

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6
Q

Flexor Digitorum Profundus Purposeful Action

A

Playing racket sports, drawing and writing (functional grasp and pinch)

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7
Q

Flexor Digitorum Profundus Main Action

A

-Flex medial 4 fingers (MCP, PIP, DIP)
-Assist to flex wrist (radiocarpal joint)

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8
Q

Flexor Digitorum Profundus Proximal Attachment

A

Proximal ulna and interosseous membrane

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9
Q

Flexor Digitorum Profundus Distal Attachment

A

-Medial: base of distal phalanges of digits 4-5
-Lateral: base of distal phalanges of digits 2-3

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10
Q

Flexor Digitorum Profundus Innervation

A

-2-3: Median (AIN, C8-T1)
-4-5: Ulnar (C8-T1)

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11
Q

Flexor Pollicis Longus Purposeful Action

A

Texting, sewing, beadwork (tip pinch)

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12
Q

Flexor Pollicis Longus Main Action

A

Flex phalanges of 1st digit (thumb)

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13
Q

Flexor Pollicis Longus Proximal Attachment

A

Anterior radius and adjacent interosseous membrane

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14
Q

Flexor Pollicis Longus Distal Attachment

A

Base of distal phalanx of thumb

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15
Q

Flexor Pollicis Longus Innervation

A

Median (AIN, C8-T1)

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16
Q

Flexor Pollicis Brevis Purposeful Action

A

Writing, beadwork, putting change in a vending machine (functional grip)

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17
Q

Flexor Pollicis Brevis Main Action

A

-Thumb flexion (CMC, MCP joints)
-Assists with thumb opposition

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18
Q

Flexor Pollicis Brevis Proximal Attachment

A

Flexor retinaculum, tubercles of scaphoid and trapezium

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19
Q

Flexor Pollicis Brevis Distal Attachment

A

Base of proximal phalanx

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20
Q

Flexor Pollicis Brevis Innervation

A

Superficial: Median nerve (recurrent branch, C8-T1)
Deep: Ulnar (deep, C8-T1)

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21
Q

Abductor Pollicis Brevis Purposeful Action

A

Texting, hitting space bar when typing

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22
Q

Flexor Pollicis Brevis Main Action

A

-Abduct thumb (CMC and MCP joint)
-Assist in thumb opposition

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23
Q

Flexor Pollicis Brevis Proximal Attachment

A

Flexor retinaculum and tubercles of scaphoid and trapezium

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24
Q

Flexor Pollicis Brevis Distal Attachment

A

Base of proximal phalanx

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25
Q

Flexor Pollicis Brevis Innervation

A

Superficial: Median nerve (recurrent, C8-T1)
Deep: Ulnar nerve (deep, C8-T1)

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26
Q

Opponens Pollicis Purposeful Action

A

Grasping spherical objects

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27
Q

Opponens Pollicis Main Action

A

Oppose thumb (draws first metacarpal medially to center of palm and rotates it medially)

28
Q

Opponens Pollicis Proximal Attachment

A

Flexor retinaculum, tubercles of scaphoid and trapezium

29
Q

Opponens Pollicis Distal Attachment

A

1st MC

30
Q

Opponens Pollicis Innervation

A

Medial (recurrent branch, C8-T1)

31
Q

Flexor Digiti Minimi Purposeful Action

A

Playing trumpet, typing

32
Q

Flexor Digiti Minimi Main Action

A

Flex 5th digit proximal phalanx at MCP joint

33
Q

Flexor Digiti Minimi Proximal Attachment

A

Hook of hamate, flexor retinaculum

34
Q

Flexor Digiti Minimi Distal Attachment

A

Base of 5th proximal phalanx

35
Q

Flexor Digiti Minimi Innervation

A

Ulnar nerve (deep branch, C8-T1)

36
Q

Abductor Digiti Minimi Purposeful Action

A

Typing, playing piano

37
Q

Abductor Digiti Minimi Main Action

A

Abduct 5th digit (MCP joint)

38
Q

Abductor Digiti Minimi Proximal Attachment

A

Pisiform

39
Q

Abductor Digiti Minimi Distal Attachment

A

Base of 5th proximal phalanx

40
Q

Abductor Digiti Minimi Innervation

A

Ulnar nerve (deep branch, C8-T1)

41
Q

Opponens Digiti Minimi Purposeful Action

A

Holding spherical object

42
Q

Opponens Digiti Minimi Main Action

A

5th digit opposition (CMC joint)

43
Q

Opponens Digiti Minimi Proximal Attachment

A

Hook of hamate and flexor retinaculum

44
Q

Opponens Digiti Minimi Distal Attachment

A

Medial border of 5th MC

45
Q

Opponens Digiti Minimi Innervation

A

Ulnar (deep branch, C8-T1)

46
Q

Adductor Pollicis Purposeful Action

A

Brushing hair, turning key, swiping card (lateral pinch)

47
Q

Adductor Pollicis Main Action

A

Thumb adduction towards lateral border of thumb

48
Q

Adductor Pollicis Proximal Attachment

A

-Oblique: base of 2nd-3rd MC, capitate and adjacent carpals
-Transverse: Anterior surface of shaft of 3rd MC

49
Q

Adductor Pollicis Distal Attachment

A

Base of proximal phalanx of thumb

50
Q

Adductor Pollicis Innervation

A

Ulnar nerve (deep branch, C8-T1)

51
Q

Lumbricals Purposeful Action

A

Holding a flat object (MCP flexion with PIP/DIP extension)

52
Q

Lumbricals Main Action

A

-MCP joint flexion
-IP joint extension
-All 2-5th digits

53
Q

Lumbricals Proximal Attachment

A

-1/2: lateral tendons of FDP (unipennate)
-3/4: Medial tendons of FDP (bipennate)

54
Q

Lumbricals Distal Attachment

A

Radial sides of extensor expansions of digits 2-5

55
Q

Lumbricals Innervation

A

-1/2: Median (digital branch, C8-T1)
-3/4 Ulnar (deep branch, C8-T1)

56
Q

Palmar Interossei Purposeful Action

A

Holding a flat object (sock puppet), playing piano

57
Q

Palmar Interossei Main Action

A

-Digits 2, 4-5 adduction towards axial line (PADS)
-Help lumbricals with MCP joint flexion and IP joint extension (sock puppet)

58
Q

Palmar Interossei Proximal Attachment

A

-Palmar surface of 2, 4, 5th MC (unipennate)

59
Q

Palmar Interossei Distal Attachment

A

Bases of proximal phalanges and extensor expansions of digits 2, 4, and 5

60
Q

Palmar Interossei Innervation

A

Ulnar nerve (deep branch, C8-T1)

61
Q

Dorsal Interossei Purposeful Action

A

Cutting with scissors, typing

62
Q

Dorsal Interossei Main Action

A

-Digits 2-4 abduction from axial line
-Assist lumbricals with MCP flexion and IP extension

63
Q

Dorsal Interossei Proximal Attachment

A

Adjacent sides of two MC’s (bipennate)

64
Q

Dorsal Interossei Distal Attachment

A

Bases of proximal phalanges and extensor expansions of digits 2-4

65
Q

Dorsal Interossei Innervation

A

Ulnar Nerve (deep branch, C8-T1)

Anatomy (15 decks)

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