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Gross Anatomy Lab > Upper limb and hand (O, I, A, N) > Flashcards

Upper limb and hand (O, I, A, N) Flashcards

1
Q

Origin: Deltoid

A

Acromion process; spine of the scapula; lateral 1/3 of the clavicle

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2
Q

Insertion: Deltoid

A

Deltoid tuberosity

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3
Q

Action: Deltoid

A

Anterior fibers: flexes the arm and internally rotates the arm
Middle fibers: abduct the arm
Posterior fibers: extends and externally rotates the arm

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4
Q

Nerve: Deltoid

A

Axillary (C5, C6)

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5
Q

Origin: Biceps Brachii

A

Short head: coracoid process

Long head: supraglenoid tubercle of the scapula

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6
Q

Insertion: Biceps Brachii

A

Radial tuberosity and aponeurosis of the biceps brachii

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7
Q

Action: Biceps Brachii

A

Flexes and supinates the forearm at the elbow

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8
Q

Nerve: Biceps Brachii

A

Musculocutaneous (C5, C6)

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9
Q

Origin: Brachialis

A

Distal anterior surface of humerus

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10
Q

Insertion: Brachialis

A

coronoid process of the ulna tuberosity

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11
Q

Action: Brachialis

A

Flexes the elbow joint

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12
Q

Nerve: Brachialis

A

Musculocutaneous (C5, C6)

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13
Q

Origin: Coracobrachialis

A

Apex of the coracoid process of the scapula

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14
Q

Insertion: Coracobrachialis

A

Medial surface of the middle shaft of the humerus

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15
Q

Action: Coracobrachialis

A

Flexes and adducts the shoulder joint

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16
Q

Nerve: Coracobrachialis

A

Musculocutaneous (C5, C6)

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17
Q

What three muscles are innervated by the musculocutaneous nerve?

A

Biceps Brachii
Brachialis
Coracobrachialis

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18
Q

Origin: Triceps Brachii

A

Long head: Infraglenoid tubercle of the scapula
Lateral head: posterolateral humerus proximal to radius groove
Medial head: posteromedial surface of the distal humerus below radial groove

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19
Q

Insertion: Triceps Brachii

A

Posterior surface of olecranon process of ulna

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20
Q

Action: Triceps Brachii

A

Extends the forearm at the elbow

Long head: assists in adduction and extension of the shoulder

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21
Q

Nerve: Triceps Brachii

A

Radial (C6, C7, C8, T1)

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22
Q

Origin: Anconeus

A

Lateral epicondyle of the humerus

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23
Q

Insertion: Anconeus

A

Lateral side of the olecranon and superior part of the posterior ulna distally

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24
Q

Action: Anconeus

A

Extension of the arm

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25
Q

Nerve: Anconeus

A

Radial Nerve

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26
Q

Origin: Brachioradialis

A

Distal lateral supracondylar ridge of distal humerus

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27
Q

Insertion: Brachioradialis

A

Lateral side of distal end of radius

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28
Q

Action: Brachioradialis

A

Flexes elbow; supinates forearm

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29
Q

Nerve: Brachioradialis

A

Radial (C5, C6)

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30
Q

Origin: Pronator teres

A

2 heads: medial epicondyle of the humerus and coronoid process of the ulna

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31
Q

Insertion: Pronator teres

A

Middle of the lateral surface of the radius

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32
Q

Action: Pronator teres

A

Pronates the forearm

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33
Q

Nerve: Pronator teres

A

Median (C6, C7)

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34
Q

Origin: Flexor Carpi Radialis

A

Medial epidcondyle of humerus

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35
Q

Insertion: Flexor Carpi Radialis

A

Base of 2nd metacarpal

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36
Q

Action: Flexor Carpi Radialis

A

Flexes and adducts the wrist

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37
Q

Nerve: Flexor Carpi Radialis

A

Median (C6, C7, C8)

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38
Q

Origin: Palmaris Longus

A

Medial epicondyle of the humerus

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39
Q

Insertion: Palmaris Longus

A

Palmar aponeurosis

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40
Q

Action: Palmaris Longus

A

Tenses the palmar fascia, flexes the wrist

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41
Q

Nerve: Palmaris Longus

A

Median (C6, C7, C8, T1)

42
Q

Origin: Flexor Carpi Ulnaris

A

Humeral head: medial epicondyle of humerus

Ulnar head: olecranon and post border of ulna

43
Q

Insertion: Flexor Carpi Ulnaris

A

Pisiform bone, hook of hamate, base of 5th metacarpal

44
Q

Action: Flexor Carpi Ulnaris

A

Flexes and adducts the wrist

45
Q

Nerve: Flexor Carpi Ulnaris

A

Ulnar (C7, C8, T1)

46
Q

Origin: Flexor Digitorum Superficialis

A

Humeroulnar head: medial epicondyle of the humerus, coronoid process of ulna
Radial head: superior 1/2 of anterior radius

47
Q

Insertion: Flexor Digitorum Superficialis

A

Bodies of middle phalanges of the 2nd - 5th digits

48
Q

Action: Flexor Digitorum Superficialis

A

Flexes the proximal IP joints of the 2nd - 5th digits

49
Q

Nerve: Flexor Digitorum Superficialis

A

Median (C7, C8, T1)

50
Q

Origin: Flexor Digitorum Profundus

A

Posterior and medial borders of the ulna; interosseous membrane

51
Q

Insertion: Flexor Digitorum Profundus

A

Palmar base of distal phalanges of 2nd - 5th digits

52
Q

Action: Flexor Digitorum Profundus

A

Flexes the distal IP joints of 2nd - 5th digits. Assist with flexion of the wrist

53
Q

Nerve: Flexor Digitorum Profundus

A

Median and ulnar nerve

54
Q

Origin: Flexor Pollicis Longus

A

Anterior surface of radius and adjacent interosseous membrane

55
Q

Insertion: Flexor Pollicis Longus

A

Palmar side of the distal phalanx of the thumb

56
Q

Action: Flexor Pollicis Longus

A

Flexes the IP joint of the thumb

57
Q

Nerve: Flexor Pollicis Longus

A

Meidan (C6, C7, C8, T1)

58
Q

Origin: Pronator Quadratus

A

Anterior surface of the distal ulna

59
Q

Insertion: Pronator Quadratus

A

Anterior surface of distal radius

60
Q

Action: Pronator Quadratus

A

Pronates forearm

61
Q

Nerve: Pronator Quadratus

A

Median (C7, C8, T1)

62
Q

Origin: Extensor Carpi Radialis Longus

A

lateral supraepicondylar ridge of humerus

63
Q

Insertion: Extensor Carpi Radialis Longus

A

Dorsal aspect of base of 2nd MC

64
Q

Action: Extensor Carpi Radialis Longus

A

Extends and abducts the wrist at the hand

65
Q

Nerve: Extensor Carpi Radialis Longus

A

Radial (C5, C6, C7, C8)

66
Q

Origin: Extensor Digitorum

A

Lateral epicondyle of the humerus

67
Q

Insertion: Extensor Digitorum

A

Extensor expansions of medial 4 digits

68
Q

Action: Extensor Digitorum

A

Extends the MCP joints, extends the IP joints of the 2nd - 5th digits

69
Q

Nerve: Extensor Digitorum

A

Radial (C6, C7, C8)

70
Q

Origin: Extensor Carpi Ulnaris

A

Lateral epicondyle of humerus and posterior border of ulna

71
Q

Insertion: Extensor Carpi Ulnaris

A

Dorsal base of 5th MC

72
Q

Action: Extensor Carpi Ulnaris

A

Extends and adducts the wrist

73
Q

Nerve: Extensor Carpi Ulnaris

A

Radial (C6, C7, C8)

74
Q

Origin: Abductor Pollicis Longus

A

Middle 1/3 of the posterior of the radius and ulna

75
Q

Insertion: Abductor Pollicis Longus

A

Base of 1st MC bone (radial side)

76
Q

Action: Abductor Pollicis Longus

A

Abducts and extends the CMC jt of the thumb, abducts, and assists in wrist flexion

77
Q

Nerve: Abductor Pollicis Longus

A

Radial (C6, C7, C8)

78
Q

Origin: Extensor Digiti Minimi

A

Lateral epicondyle of the humerus

79
Q

Insertion: Extensor Digiti Minimi

A

Extensor expansion of the 5th digit w/the extensor of digitorum tendon

80
Q

Action: Extensor Digiti Minimi

A

Extends MCP joint of the 5th digit

81
Q

Nerve: Extensor Digiti Minimi

A

Radial (C6, C7, C8)

82
Q

Origin: Extensor Pollicis Longus

A

Posterolateral surface of the ulna; interosseous membrane

83
Q

Insertion: Extensor Pollicis Longus

A

Dorsal aspect of base of distal phalanx of thumb

84
Q

Action: Extensor Pollicis Longus

A

Extends IP joint of the thumb

85
Q

Nerve: Extensor Pollicis Longus

A

Radial (C6, C7, C8)

86
Q

Origin: Extensor Pollicis Brevis

A

Posterior surface of the distal radius; the interosseous membrane

87
Q

Insertion: Extensor Pollicis Brevis

A

Dorsal aspect of base of proximal phalanx of thumb

88
Q

Action: Extensor Pollicis Brevis

A

Extends the MCP joint of the thumb

Extends and abducts the CMC joint

89
Q

Nerve: Extensor Pollicis Brevis

A

Radial (C6, C7, C8)

90
Q

Origin: Extensor Indicis

A

Posterolateral surface of the ulna; interosseous membrane

91
Q

Insertion: Extensor Indicis

A

Extensor expansion of the index finger

92
Q

Action: Extensor Indicis

A

extends MCP joint of the index finger

93
Q

Nerve: Extensor Indicis

A

Radial (C6, C7, C8)

94
Q

Origin: Supinator

A

Lateral epicondyle of humerus, supinator crest of the ulna

95
Q

Insertion: Supinator

A

Lateral 1/3 of proximal radius

96
Q

Action: Supinator

A

Supinates forearm

97
Q

Nerve: Supinator

A

Radial (C5, C6, C7)

98
Q

Origin: Extensor Carpi Radialis Brevis

A

Lateral epicondyle of humerus

99
Q

Insertion: Extensor Carpi Radialis Brevis

A

Dorsal aspect of base of 3rd metacarpal

100
Q

Action: Extensor Carpi Radialis Brevis

A

Extends and abducts hand at wrist

101
Q

Nerve: Extensor Carpi Radialis Brevis

A

Radial (C6, C7, C8)

102
Q

Which muscles are innervated by the radial nerve (C6 - C8)?

A 
Superficial: 
Extensor Carpi Radialis Brevis
Extensor digitorum
Extensor digiti minimi 
Extensor Carpi Ulnaris 
Deep: 
Abductor Pollicis Longus
Extensor Pollicis Brevis
Extensor Pollicis Longus
Extensor Indicis

Gross Anatomy Lab (9 decks)

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