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Gross Anatomy > Exam 2 Quiz 2 > Flashcards

Exam 2 Quiz 2 Flashcards

1
Q

____ is the pivot bone (moves during pronation and supination)

A

Radius

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2
Q

Radius articulates with

A

Ulna (distally)

Scaphoid and lunate (wrist joint)

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3
Q

Cartilage found between distal end of ulna and carpal bones

A

Articular disc of the wrist

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4
Q

____ is stabilizing bone of forearm

A

Ulna

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5
Q

____ ossification centers for radius and ulna

A

3

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6
Q

Primary center for ossification for radius and ulna

A

Shaft

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7
Q

2 secondary centers for ossification for radius and ulna

A

Distal and proximal ends

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8
Q

Order of ossification between radius and ulna

A

Distal radius
Proximal radius

Distal ulna
Proximal ulna

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9
Q

Fractures of radius and ulna due to

A

Severe or direct trauma

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10
Q

Fractures of radius/ulna may be ___

A

Comminuted

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11
Q

Colles Fracture

A

Fracture at distal end of radius

One of the most common fractures in adults

Esp. Women over 50 due to osteoporosis

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12
Q

Colles Fracture occurs when

A

Fall on outstretched hand with forearm pronated and force of trauma moves through carpal bones to distal end of radius

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13
Q

Clinical sign of Colles Fracture

A

Dinner fork deformity

Distal fragment displaced posteriorly

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14
Q

If normal articulation between radius and carpal bones not restored in Colles Fracture, may result in

A

Traumatic arthritis of wrist joint

Severe limitations of flexion and extension at wrist

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15
Q

Smith’s Fracture

A

Distal end of radius displaced anteriorly

Fall on back of hand

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16
Q

Order of ossification of carpal bones

A 
Capitate and hamate
Triquetral
Lunate
Trapezium, trapezoid, scaphoid
Pisiform
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17
Q

___ ossification centers in carpal bones

A

1

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18
Q

____ used to estimate age in children

A

Carpal bones

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19
Q

Sesamoid bones

A

Bones embedded in flexor tendons of hand

MC at MP joints of digits 1, 2, 5 and IP joint of digit 1

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20
Q

Functions of sesamoid bones

A

Protect and stabilize tendon

Change angle of tendons as they pass to insertion (increase leverage)

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21
Q

Most commonly fractured carpal bone

A

Scaphoid

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22
Q

Fractures of scaphoid result of

A

Fall on palm with hand hyperextended

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23
Q

Tenderness and swelling of anatomical snuffbox indicates

A

Scaphoid fracture

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24
Q

Due to different blood supply in scaphoid, fracture may result in

A

Necrosis of proximal part of bone

Lead to degenerative arthritis at wrist

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25
Q

____ may be damaged with fracture of hamate

A

Ulnar nerve

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26
Q

Boxer’s fracture

A

Fracture of 5th metacarpal

Occurs when individual punches someone with closed fist

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27
Q

Digit 3 movement is always

A

Abduction

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28
Q

Pronator Teres Syndrome

A

Compression of the median nerve in proximal forearm

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29
Q

Causes of pronator Teres Syndrome

A

Direct trauma

Excessive pronation/supination

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30
Q

Weakness of ___ can cause ulnar deviation

A

Flexor Carpi radialis

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31
Q

Median nerve damage can result in

A

Pronator Teres Syndrome

Carpal tunnel syndrome

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32
Q

Ape Hand

A

Atrophy of thenar muscles with loss of opposition and/or weakness of other movements of first digit

Due to median nerve damage

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33
Q

Motor test

A

Assess median nerve damage

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34
Q

Sensory test

A

Assess cutaneous sensation of tip of second digit to assess median nerve damage

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35
Q

Claw hand

A

Difficulty in making a fist due to ulnar nerve damage

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36
Q

Guyon Tunnel/ Canal Syndrome

A

Damage of ulnar nerve at wrist joint

Loss of sensation in medial 1 1/2 digits

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37
Q

Cyclists/handlebar neuropathy

A

Develop Guyon Canal Syndrome due to bicycling with hands in hyperextended position

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38
Q

Tennis elbow

Lateral epicondylitis

A

Inflammation of common tendon of origin off lateral epicondyle of humerus due to repetitive use of superficial posterior forearm muscles

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39
Q

Inflammation or subluxation of ____ may also cause pain in lateral epicondyle

A

C5

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40
Q

Mallet/Baseball finger

A

Sudden, severe tension on one of long extensor tendons

Distal IP joint forced into extreme flexion

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41
Q

DeQuervain’s Disease

Tenosynovitis Stenosans

A

Inflammation of tendons of abductor pollicis longus and extensor Pollicis Brevis within common fibrous sheath

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42
Q

DeQuervain’s most common in

A

Women

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43
Q

Clinical symptoms of

DeQuervain’s

A

Pain at lateral aspect of wrist

Pain radiating proximally and distally from that point

44
Q

Pronator teres

Origin

A

Medial epicondyle/humerus

Coronoid process/ulna

45
Q

Pronator teres

Insertion

A

Pronator ridge/radius

46
Q

Pronator teres

Action

A

Pronation of forearm at proximal radioulnar joint

Assists in flexion of forearm

47
Q

Pronator teres

Nerve supply

48
Q

Flexor Carpi radialis

Origin

A

Medial epicondyle/humerus

49
Q

Flexor Carpi radialis

Insertion

A

Second metacarpal (small slip into 3rd)

50
Q

Flexor Carpi radialis

Action

A

Equal prime mover for flexion at wrist joint

Abduction of hand

51
Q

Flexor Carpi radialis

Nerve supply

52
Q

Palmaris longus

Origin

A

Medial epicondyle/humerus

53
Q

Palmaris longus

Insertion

A

Palmer aponeurosis

54
Q

Palmaris longus

Action

A

Weak flexion at wrist joint

Tightens palmer aponeurosis- helps with palmer grip

55
Q

Palmaris longus

Nerve supply

56
Q

Flexor Carpi Ulnaris

Origin

A

Medial epicondyle/ humerus

Olecranon process/ulna

57
Q

Flexor Carpi Ulnaris

Insertion

A

Pisiform
Hamate
5th metacarpal

58
Q

Flexor Carpi Ulnaris

Action

A

Equal prime mover for flexion at wrist joint

Adduction of hand

59
Q

Flexor Carpi Ulnaris

Nerve supply

60
Q

Flexor Digitorum Superficialis

Origin

A

Medial epicondyle/ humerus

Shaft/radius

61
Q

Flexor Digitorum Superficialis

Insertion

A

Middle phalanges/ digits 2-5

62
Q

Flexor Digitorum Superficialis

Action

A

Flexes proximal IP joints of digits 2-5

Assists in flexion at the wrist joint

63
Q

Flexor Digitorum Superficialis

Nerve supply

64
Q

Flexor Digitorum Profundus

Origin

A

Shaft/ulna

Interosseous membrane

65
Q

Flexor Digitorum Profundus

Actions

A

Flexes distal IP joint of digits 2-5

Flexes wrist joint

66
Q

Flexor Digitorum Profundus

Insertion

A

Distal phalanges/ digits 2-5

67
Q

Flexor Digitorum Profundus

Nerve supply

A

Median

Ulnar

68
Q

Flexor pollicis longus

Origin

A

Shaft/radius

Interosseous membrane

69
Q

Flexor pollicis longus

Insertion

A

Distal phalanx/digit 1

70
Q

Flexor pollicis longus

Action

A

Flexes digit 1 at IP joint

71
Q

Flexor Pollicis Longus

Nerve supply

72
Q

Pronator Quadratus

Origin

A

Distal anterior shaft/ulna

73
Q

Pronator Quadratus

Insertion

A

Distal anterior shaft/radius

74
Q

Pronator Quadratus

Action

A

Pronates forearm at distal radio-ulnar joint

Helps stabilize distal radio-ulnar joint

75
Q

Pronator Quadratus

Nerve supply

76
Q

Brachioradialis

Origin

A

Lateral supracondylar ridge/ humerus

77
Q

Brachioradialis

Insertion

A

Styloid process/radius

78
Q

Brachioradialis

Action

A

Flexes forearm

Act either as pronator or supinator

79
Q

Extensor Carpi Radialis Longus

Origin

A

Lateral epicondyle/humerus

80
Q

Extensor Carpi Radialis Longus

Insertion

A

Second metacarpal

81
Q

Extensor Carpi Radialis Brevis

Origin

A

Lateral epicondyle/humerus

82
Q

Extensor Carpi Radialis Brevis

Insertion

A

3rd metacarpal

83
Q

Extensor Carpi Radialis Brevis

Actions

A

Extends hand

Abducts hand

84
Q

Extensor Digitorum Maximus

Origin

A

Lateral epicondyle/humerus

85
Q

Extensor Digitorum Maximus

Insertion

A

Middle and distal phalanges of digits 2-5

86
Q

Extensor Digitorum Maximus

Actions

A

Extends digits 2-5

Extends hand at wrist joint

87
Q

Extensor Digiti Minimi

Origin

A

Lateral epicondyle/humerus

88
Q

Extensor Digiti Minimi

Insertion

A

Proximal phalanx/ digit 5

89
Q

Extensor Digiti Minimi

Action

A

Extends digit 5

90
Q

Extensor Carpi Ulnaris

Origin

A

Lateral epicondyle/ humerus

Shaft/ulna

91
Q

Extensor Carpi Ulnaris

Insertion

A

5th metacarpal

92
Q

Extensor Carpi Ulnaris

Action

A

Extends hand

Adducts hand

93
Q

Supinator

Origin

A

Lateral epicondyle/ humerus

Supinator crest/ulna

94
Q

Supinator

Insertion

A

Shaft/radius

95
Q

Supinator action

A

Supinates forearm

96
Q

Abductor pollicis longus

Origin

A

Shaft/ulna and radius

Interosseous membrane

97
Q

Abductor Pollicis longus

Insertion

A

1st metacarpal

98
Q

Abductor pollicis longus

Action

A

Abducts digit 1

99
Q

Extensor Pollicis Brevis

Origin

A

Shaft/radius

Interosseous membrane

100
Q

Extensor Pollicis Brevis

Insertion

A

Proximal phalanx/ digit 1

101
Q

Extensor Pollicis Brevis

Action

A

Extends digit 1

102
Q

Extensor pollicis longus

Origin

A

Shaft/ulna

Interosseous membrane

103
Q

Extensor Pollicis Longus

Insertion

A

Distal phalanx/digit 1

104
Q

Extensor Pollicis Longus

Action

A

Extends digit 1

105
Q

Extensor Indicis

Origin

A

Shaft/ulna

Interosseous membrane

106
Q

Extensor Indicis

Insertion

A

Proximal phalanx/ digit 2

107
Q

Extensor Indicis

Action

A

Extends digit 2

Gross Anatomy (18 decks)

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