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Anatomy > Mid-term spotter > Flashcards

Mid-term spotter Flashcards

1
Q

What muscles are involved in shoulder abduction?

A
  • Deltoid (middle)
  • Supraspinatus
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2
Q

What muscles are involved in shoulder adduction?

A
  • Pec major (sternal head)
  • Latissimus dorsi
  • Coracobrachialis
  • Teres major
  • Subscapularis
  • Triceps brachii
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3
Q

What muscles are involved in shoulder extension?

A
  • Deltoid (posterior)
  • Latissimus dorsi
  • Trapezius (upper)
  • Triceps brachii
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4
Q

What muscles are involved in shoulder flexion?

A
  • Pec major (clavicular head)
  • Deltoid (anterior)
  • Corachobrachialis
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5
Q

What muscles are involved in medial rotation of shoulder?

A
  • Subscapularis
  • Deltoid (anterior)
  • Pec major
  • Latissimus dorsi
  • Teres major
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6
Q

What muscles are involved in lateral rotation of shoulder?

A
  • Infraspinatus
  • Deltoid (posterior)
  • Teres minor
  • Trapezius (lower)
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7
Q

What muscles are involved in extension of elbow?

A
  • Triceps brachii
  • Anconeus
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8
Q

What muscles are involved in flexion of elbow?

A
  • Brachialis
  • Biceps brachii
  • Pronator teres
  • Brachioradialis
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9
Q

What muscles are involved in elbow and wrist pronation?

A
  • Pronator quadratus
  • Pronator teres
  • Brachioradialis
  • Flexor carpi
  • Anconeus
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10
Q

What muscles are involved in elbow and wrist supination?

A
  • Supinator
  • Biceps brachii
  • Brachioradialis
  • Abductor pollicis longus
  • Extensor pollicis longus
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11
Q

What muscles are involved in wrist abduction?

A
  • Carpi radialis
  • Abductor pollicis longus
  • Extensor pollicis brevis
  • Flexor pollicis longus
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12
Q

What muscles are involved in wrist adduction?

A
  • Carpi ulnaris
  • Extensor digitorum
  • Extensor digiti minimi - Extensor pollicis longus
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13
Q

What muscles are involved in wrist flexion?

A
  • Flexors (except pollicis & digiti minimi)
  • Palmaris longus
  • Abductor pollicis longus
  • Extensor pollicis longus
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14
Q

What muscles are involved in wrist extension?

A
  • Extensor carpi
  • Anconeus
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15
Q

What muscles are involved in finger abduction?

A
  • Dorsal interossei
  • Abductor pollicis brevis
  • Abductor pollicis longus
  • Abductor digiti minimi
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16
Q

What muscles are involved in finger adduction?

A
  • Palmar interossei
  • Adductor pollicis
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17
Q

What muscles are involved in finger extension?

A
  • Extensors (except carpis)
  • Abductor pollicis longus
  • Palmar interossei (IP)
  • Dorsal interossei (IP)
  • Lumbricals (IP)
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18
Q

What muscles are involved in finger flexion?

A
  • Flexor pollicis
  • Flexor digitorum
  • Lumbricals (MCP)
  • Palmar interossei (MCP)
  • Dorsal interossei (MCP
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19
Q

What muscles are involved in medial rotation of fingers?

A
  • Opponens pollicis
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20
Q

What muscles are involved in lateral rotation of fingers?

A
  • Extensor pollicis longus
  • Opponens digiti minimi
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21
Q

Classify the sternoclavicular joint and give its degree of freedom.

A
  • Atypical synovial saddle joint
  • 3°
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22
Q

Classify the acromioclavicular joint and give its degree of freedom.

A
  • Atypical synovial plane joint
  • 1°
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23
Q

Classify the glenohumeral joint and give its degree of freedom.

A
  • Typical synovial ball & socket joint
  • 3°
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24
Q

Classify the elbow joint and give its degree of freedom.

A
  • Typical synovial hinge joint
  • 1°
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25
Q

Classify the proximal radioulnar joint and give its degree of freedom.

A
  • Typical pivot joint
  • 1°
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26
Q

Classify the distal radioulnar joint and give its degree of freedom.

A
  • Typical pivot joint
  • 1°
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27
Q

Classify the radiocarpal joint and give its degree of freedom.

A
  • Typical synovial ellipsoid joint
  • 2°
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28
Q

What muscles are in the anterior compartment of arm?

A
  • biceps brachii
  • brachialis
  • coracobrachialis
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29
Q

What is the blood supply for the anterior compartment of arm?

A

Brachial artery

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30
Q

What muscles are in the posterior compartment of arm?

A
  • triceps brachii
  • anconeus
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31
Q

What is the blood supply for the posterior compartment of arm?

A

Deep brachial artery

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32
Q

What are the superficial muscles in the anterior compartment of forearm?

A
  • Pronator teres
  • Flexor carpi radialis
  • Flexor carpi ulnaris
  • Palmaris longus
  • Flexor digitorum superficialis
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33
Q

What are the superficial muscles in the posterior compartment of forearm?

A
  • Brachioradialis
  • Extensor carpi radialis longus
  • Extensor carpi radialis brevis
  • Extensor digitorum
  • Extensor digiti minimi
  • Extensor carpi ulnaris
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34
Q

What are the deep muscles in the posterior compartment of forearm?

A
  • Abductor pollicis longus
  • Extensor pollicis brevis
  • Extensor pollicis longus
  • Extensor indicis
  • Supinator
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35
Q

What innervates the posterior compartment of arm?

A

Radial nerve

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36
Q

What innervates the anterior compartment of arm?

A

Musculocutaneous nerve

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37
Q

What innervates most of the anterior compartment of forearm?

A

Median nerve

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38
Q

What innervates the posterior compartment of forearm?

A

Radial nerve

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39
Q

What are the exceptions to the innervation of the anterior compartment of forearm by the median nerve?

A

Medial part of the flexor digitorum profundus and flexor carpi ulnaris muscles

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40
Q

What are the exceptions to the innervation of the anterior compartment of forearm by the median nerve?

A
  • Medial part of the flexor digitorum profundus - ulnar nerve
  • Flexor carpi ulnaris muscles - muscular branches of ulnar nerve
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41
Q

What is a Smith’s fracture?

A

A complete INWARD fracture of the radius

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42
Q

What muscles adduct the humerus?

A
  • Pectoralis major
  • Latissimus dorsi
  • Teres major
  • Triceps
  • Coracobrachialis
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43
Q

What muscles abduct the humerus?

A
  • Supraspinatus
  • Deltoid
  • Trapezius
  • Serratus anterior
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44
Q

What muscles laterally rotates the humerus?

A
  • Infraspinatus
  • Teres minor
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45
Q

What muscles laterally rotates the humerus?

A
  • Infraspinatus
  • Teres minor
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46
Q

What muscles medially rotates the humerus?

A
  • Subscapularis
  • Teres major
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47
Q

What muscles cause radial deviation?

A
  • Flexor Carpi Radialis.
  • Extensor Carpi Radialis Longus.
  • Extensor Carpi Radialis Brevis.
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48
Q

What muscles cause ulnar deviation?

A
  • Flexor Carpi Ulnaris.
  • Extensor Carpi Ulnaris.
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49
Q
A
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50
Q

Biceps brachii long head origin

A

Supraglenoid tubercle of scapula

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51
Q

Biceps brachii long head insertion

A

Radial tuberosity, fascia of forearm via bicipital aponeurosis

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52
Q

Biceps brachii long head innervation

A

Musculocutaneous nerve

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53
Q

Biceps brachii long head blood supply

A

Muscular branches of brachial artery

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54
Q

Biceps brachii long head actions

A

Flexes and supinates forearm at elbow

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55
Q

Biceps brachii short head origin

A

Coracoid process of scapula

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56
Q

Biceps brachii short head insertion

A

Radial tuberosity, fascia of forearm via bicipital aponeurosis

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57
Q

Biceps brachii short head innervation

A

Musculocutaneous nerve

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58
Q

Biceps brachii short head blood supply

A

Muscular branches of brachial artery

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59
Q

Biceps brachii short head actions

A

Flexes and supinates forearm at elbow

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60
Q

Brachialis origin

A

Distal half of anterior surface of humerus

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61
Q

Brachialis insertion

A

Coronoid process and tuberosity of ulna

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62
Q

Brachialis innervation

A

Musculocutaneous nerve and radial nerve

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63
Q

Brachialis blood supply

A

Radial recurrent artery, muscular branches of brachial artery

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64
Q

Brachialis actions

A

Flexes forearm at elbow

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65
Q

Brachioradialis origin

A

Proximal 2/3 of lateral supracondylar ridge of humerus

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66
Q

Brachioradialis insertion

A

Lateral side of distal end of radius

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67
Q

Brachioradialis innervation

A

Radial nerve

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68
Q

Brachioradialis blood supply

A

Radial recurrent artery

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69
Q

Brachioradialis actions

A

Weak flexion of forearm when forearm is midpronated

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70
Q

Coracobrachialis origin

A

Coracoid process of scapula

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71
Q

Coracobrachialis insertion

A

Middle third of medial surface of humerus

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72
Q

Coracobrachialis innervation

A

Musculocutaneous nerve

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73
Q

Coracobrachialis blood supply

A

Muscular branches of brachial artery

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74
Q

Coracobrachialis actions

A

Flexes and adducts arm at shoulder

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75
Q

Deltoid origin

A

Lateral third of clavicle, acromion, spine of scapula

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76
Q

Deltoid insertion

A

Deltoid tuberosity of humerus

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77
Q

Deltoid innervation

A

Axillary nerve

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78
Q

Deltoid blood supply

A

Posterior circumflex humeral artery, deltoid branch of thoracoacromial artery

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79
Q

Deltoid actions

A

shoulder abduction, flexion and extension

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80
Q

Trapezius origin

A

External occipital protuberance and superior nuchal line of the back of the skull – ligamentum nuchae – spine processes of all
thoracic vertebra T1 to T12

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81
Q

Trapezius insertion

A

upper - clavicle and acromion of scapula;
middle - spine of scapula;
lower - base of the spine of scapula

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82
Q

Trapezius blood supply

A
  • The transverse cervical artery
  • The dorsal scapular artery,
  • The posterior intercostal arterial branches.
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83
Q

Trapezius innervation

A

Spinal part of the accessory nerve

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84
Q

Trapezius actions

A

Elevates, retracts, rotates the scapula

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85
Q

Latissimus dorsi origin

A

T7 to L5 spinous processes – thoracolumbar fascia –
posterior superior iliac spine and posterior iliac crest

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86
Q

Latissimus dorsi insertion

A

The floor of the intertubercular groove of the humerus

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87
Q

Latissimus dorsi blood supply

A

Thoracodorsal artery

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88
Q

Latissimus dorsi innervation

A

Thoracodorsal nerve

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89
Q

Latissimus dorsi actions

A

Adducts and medially rotates the humerus – raises the trunk – powerful extensor of the humerus from the flexed position

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90
Q

Rhomboid major and minor origin

A

Spines of upper six thoracic vertebra

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91
Q

Rhomboid major and minor insertion

A

Dorsal surface of medial border of scapula rhomboid minor above and major below

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92
Q

Rhomboid major and minor actions

A

Elevates / retracts the scapula

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93
Q

Rhomboid major and minor nerve supply

A

Dorsal scapular nerve

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94
Q

Rhomboid major and minor blood supply

A

Dorsal scapular artery

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95
Q

Levator scapulae origin

A

3 to 4 slips passing from transverse tubercles C1-C4

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96
Q

Levator scapulae insertion

A

Superior angle of scapula

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97
Q

Levator scapulae innervation

A

Direct branches from cervical plexus C3, C4

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98
Q

Levator scapulae actions

A

Elevates the scapula

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99
Q

Levator scapulae blood supply

A

Dorsal scapular artery

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100
Q

Teres major origin

A

Inferior angle dorsal surface of scapula

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101
Q

Teres major insertion

A

Medial lip intertubercular groove humerus

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102
Q

Teres major innervation

A

Lower subscapular nerve C6, C7

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103
Q

Teres major blood supply

A

Subscapular and circumflex scapular arteries

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104
Q

Teres major actions

A

Adduction & medial rotation of the humerus

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105
Q

Teres minor origin

A

Lateral border of the scapula

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106
Q

Teres minor innervation

A

Axillary nerve

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107
Q

Teres minor insertion

A

Inferior facet of greater tubercle of the humerus

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108
Q

Teres minor blood supply

A

Subscapular and circumflex scapular artery

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109
Q

Teres minor actions

A

Adduction and lateral rotation of humerus

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110
Q

Supraspinatus origin

A

Supraspinous fossa scapula

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111
Q

Supraspinatus insertion

A

Upper facet greater tubercle of humerus

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112
Q

Supraspinatus innervation

A

Suprascapular nerve (upper trunk)

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113
Q

Supraspinatus blood supply

A

Suprascapular artery

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114
Q

Supraspinatus actions

A

Initiation of abduction + part of ‘rotator cuff’

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3
4
5
Perfectly
115
Q

Infraspinatus origin

A

Infraspinous fossa

116
Q

Infraspinatus insertion

A

Middle facet greater tubercle of humerus

117
Q

Infraspinatus blood supply

A
  • Suprascapular
  • Circumflex scapular arteries.
118
Q

Infraspinatus innervation

A

Suprascapular nerve (upper trunk BP)

119
Q

Infraspinatus actions

A

Lateral rotation of arm, + part of ‘rotator cuff’ group

120
Q

Subscapularis origin

A

Subscapular fossa

121
Q

Subscapularis insertion

A

Lesser tubercle of Humerus

122
Q

Subscapularis innervation

A

Upper & lower subscapular nerves C5, C6, C7

123
Q

Subscapularis blood supply

A
  • Subscapular
  • Suprascapular
  • Circumflex scapular arteries
124
Q

Subscapularis actions

A

Medial rotation & adduction of humerus / + part of ‘rotator cuff’

125
Q

Triceps brachii long head origin

A

Infraglenoid tubercle of scapula

126
Q

Triceps brachii long head insertion

A

Posterior surface of olecranon process of ulna

127
Q

Triceps brachii long head innervation

A

Radial nerve

128
Q

Triceps brachii long head blood supply

A

Branch of profunda brachii artery

129
Q

Triceps brachii long head actions

A

Extension and adduction of the arm at the shoulder joint.

130
Q

Triceps brachii lateral head origin

A

Upper half of posterior humerus

131
Q

Triceps brachii lateral head insertion

A

Posterior surface of olecranon process of ulna

132
Q

Triceps long head innervation

A

Radial nerve

133
Q

Triceps brachii lateral head blood supply

A

Branch of profunda brachii artery

134
Q

Triceps brachii lateral head actions

A

Extends forearm at elbow

135
Q

Triceps brachii medial head origin

A
136
Q

Triceps brachii medial head insertion

A

Posterior surface of olecranon process of ulna

137
Q

Triceps brachii medial head innervation

A

Radial nerve

138
Q

Triceps brachii medial head blood supply

A

Branch of profunda brachii artery

139
Q

Triceps brachii medial head actions

A

Extends forearm at elbow

140
Q

Abductor digiti minimi origin

A

Pisiform bone and tendon of flexor carpi ulnaris

141
Q

Abductor digiti minimi insertion

A

Medial side of base of proximal phalanx of little finger

142
Q

Abductor digiti minimi innervation

A

Ulnar nerve (deep branch)

143
Q

Abductor digiti minimi blood supply

A

Deep palmar branch of ulnar artery

144
Q

Abductor digiti minimi actions

A

Abducts little finger

145
Q

Abductor pollicis brevis origin

A

Flexor retinaculum, tubercles of scaphoid and trapezium bones

146
Q

Abductor pollicis brevis insertion

A

Base of proximal phalanx of thumb

147
Q

Abductor pollicis brevis innervation

A

Median nerve (recurrent branch)

148
Q

Abductor pollicis brevis blood supply

A

Superficial palmar branch of radial artery

149
Q

Abductor pollicis brevis action

A

Abducts thumb

150
Q

Abductor pollicis longus origin

A

Posterior surface of ulna, radius, and interosseous membrane

151
Q

Abductor pollicis longus insertion

A

Base of 1st metacarpal

152
Q

Abductor pollicis longus innervation

A

Radial nerve (posterior interosseous)

153
Q

Abductor pollicis longus blood suppy

A

Posterior interosseous artery

154
Q

Abductor pollicis longus actions

A

Abducts and extends thumb at carpometacarpal joint

155
Q

Adductor pollicis origin oblique head

A

Bases of 2nd and 3rd metacarpals and capitate bone and adjacent bones

156
Q

Adductor pollicis insertion

A

Base of proximal phalanx of thumb

157
Q

Adductor pollicis innervation

A

Ulnar nerve (deep branch)

158
Q

Adductor pollicis blood supply

A

Deep palmar arch

159
Q

Adductor pollicis actions

A

Adducts thumb

160
Q

Adductor pollicis origin trasnverse head

A

Anterior surface of 3rd metacarpal

161
Q

Anconeus origin

A

Posterior surface of lateral epicondyle of humerus

162
Q

Anconeus insertion

A

Lateral surface of olecranon and posterior proximal ulna

163
Q

Anconeus innervation

A

Radial nerve

164
Q

Anconeus blood supply

A

Deep brachial artery

165
Q

Anconeus actinos

A

Assists triceps brachii in extending elbow, abducts ulna in pronation

166
Q

Dorsal interosseous muscles origin

A

Sides of two adjacent metacarpal bones

167
Q

Dorsal interosseous muscles insertion

A

Base of proximal phalangeal bones, extensor expansion of digits 2–4

168
Q

Dorsal interosseous muscles innervation

A

Ulnar nerve (deep branch)

169
Q

Dorsal interosseous muscles blood supply

A

Deep palmar arch

170
Q

Dorsal interosseous muscles actions

A

Abduct digits; flex digits at metacarpophalangeal joint and extend interphalangeal joints

171
Q

Extensor carpi radialis brevis origin

A

Lateral epicondyle of humerus

172
Q

Extensor carpi radialis brevis insertion

A

Base of 3rd metacarpal and slip to 2nd metacarpal

173
Q

Extensor carpi radialis brevis innervation

A

Radial nerve (deep branch)

174
Q

Extensor carpi radialis brevis blood supply

A

Radial artery, radial recurrent artery

175
Q

Extensor carpi radialis brevis actions

A

Extends and abducts hand at wrist

176
Q

Extensor carpi radialis longus origin

A

Distal third of lateral supracondylar ridge of humerus

177
Q

Extensor carpi radialis longus insertion

A

Base of 2nd metacarpal and slip to 3rd metacarpal

178
Q

Extensor carpi radialis longus innervation

A

Radial nerve

179
Q

Extensor carpi radialis longus blood supply

A

Radial artery, radial recurrent artery

180
Q

Extensor carpi radialis longus actions

A

Extends and abducts hand at wrist

181
Q

Extensor carpi ulnaris origin

A

Lateral epicondyle of humerus and posterior border of ulna

182
Q

Extensor carpi ulnaris insertion

A

Base of 5th metacarpal

183
Q

Extensor carpi ulnaris innervation

A

Radial nerve (posterior interosseous nerve)

184
Q

Extensor carpi ulnaris blood supply

A

Posterior interosseous artery

185
Q

Extensor carpi ulnaris actions

A

Extends and adducts hand at wrist

186
Q

Extensor digiti minimi origin

A

Lateral epicondyle of humerus

187
Q

Extensor digiti minimi insertion

A

Extensor expansion of 5th digit

188
Q

Extensor digiti minimi innervation

A

Radial nerve (posterior interosseous nerve)

189
Q

Extensor digiti minimi blood supply

A

Posterior interosseous artery

190
Q

Extensor digiti minimi actions

A

Extends 5th digit

191
Q

Extensor digitorum origin

A

Lateral epicondyle of humerus

192
Q

Extensor digitorum insertion

A

Extensor expansions of medial four digits

193
Q

Extensor digitorum innervation

A

Radial nerve (posterior interosseous nerve)

194
Q

Extensor digitorum blood supply

A

Posterior interosseous artery

195
Q

Extensor digitorum actions

A

Extends medial four digits, assists in wrist extension

196
Q

Extensor indicis origin

A

Posterior surface of ulna and interosseous membrane

197
Q

Extensor indicis insertion

A

Extensor expansion of 2nd digit

198
Q

Extensor indicis innervation

A

Radial nerve (posterior interosseous nerve)

199
Q

Extensor indicis blood supply

A

Posterior interosseous artery

200
Q

Extensor indicis actions

A

Extends 2nd digit and helps extend hand at wrist

201
Q

Extensor pollicis brevis origin

A

Posterior surface of radius and interosseous membrane

202
Q

Extensor pollicis brevis insertion

A

Dorsal base of proximal phalanx of thumb

203
Q

Extensor pollicis brevis innervation

A

Radial nerve (posterior interosseous nerve)

204
Q

Extensor pollicis brevis blood supply

A

Posterior interosseous artery

205
Q

Extensor pollicis brevis actions

A

Extends proximal phalanx of thumb at carpometacarpal joint

206
Q

Extensor pollicis longus origin

A

Posterior surface of middle third of ulna, interosseous membrane

207
Q

Extensor pollicis longus insertion

A

Dorsal base of distal phalanx of thumb

208
Q

Extensor pollicis longus innervation

A

Radial nerve (posterior interosseous nerve)

209
Q

Extensor pollicis longus blood supply

A

Posterior interosseous artery

210
Q

Extensor pollicis longus actions

A

Extends distal phalanx of thumb at interphalangeal and metacarpophalangeal joints

211
Q

Flexor carpi radialis origin

A

Medial epicondyle of humerus

212
Q

Flexor carpi radialis insertion

A

Base of 2nd metacarpal

213
Q

Flexor carpi radialis innervation

A

Median nerve

214
Q

Flexor carpi radialis blood supply

A

Radial artery

215
Q

Flexor carpi radialis actions

A

Flexes and abducts hand at wrist

216
Q

Flexor carpi ulnaris superficial head origin

A

Medial epicondyle of humerus

217
Q

Flexor carpi ulnaris deep head origin

A

Olecranon and posterior border of ulna

218
Q

Flexor carpi ulnaris insertion

A

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

219
Q

Flexor carpi ulnaris innervation

A

Ulnar nerve

220
Q

Flexor carpi ulnaris blood supply

A

Posterior ulnar recurrent artery

221
Q

Flexor carpi ulnaris actions

A

Flexes and adducts hand at wrist

222
Q

Flexor digiti minimi brevis origin

A

Flexor retinaculum and hook of hamate bone

223
Q

Flexor digiti minimi brevis insertion

A

Medial side of base of proximal phalanx of little finger

224
Q

Flexor digiti minimi brevis innervation

A

Ulnar nerve (deep branch)

225
Q

Flexor digiti minimi brevis blood supply

A

Deep palmar branch of ulnar artery

226
Q

Flexor digiti minimi brevis actions

A

Flexes proximal phalanx of little finger

227
Q

Flexor digitorum profundus origin

A

Medial and anterior surface of proximal 3/4 of ulna and interosseous membrane

228
Q

Flexor digitorum profundus insertion

A

Palmar base of distal phalangeal bones of medial four digits

229
Q

Flexor digitorum profundus innervation

A

Medial part: ulnar nerve
Lateral part: median nerve

230
Q

Flexor digitorum profundus blood supply

A

Anterior interosseous artery, muscular branches of ulnar artery

231
Q

Flexor digitorum profundus actions

A

Flexes distal phalangeal bones of medial four digits, assists with flexion of hand at wrist

232
Q

Flexor digitorum superficialis humeroulnar head

A

Medial epicondyle of humerus, coronoid, process of ulna, ulnar collateral ligament

233
Q

Flexor digitorum superficialis radial head

A

Superior half of anterior radius

234
Q

Flexor digitorum superficialis insertion

A

Bodies of middle phalangeal bones of medial four digits

235
Q

Flexor digitorum superficialis innervation

A

Median nerve

236
Q

Flexor digitorum superficialis blood supply

A

Ulnar and radial arteries

237
Q

Flexor digitorum superficialis actions

A

Flexes middle and proximal phalangeal bones of medial four digits, flexes hand at wrist

238
Q

Flexor pollicis brevis origin

A

Flexor retinaculum and tubercle of trapezium bone

239
Q

Flexor pollicis brevis insertion

A

Lateral side of base of proximal phalanx of thumb

240
Q

Flexor pollicis brevis innervation

A

Median nerve (recurrent branch)

241
Q

Flexor pollicis brevis blood supply

A

Superficial palmar branch of radial artery

242
Q

Flexor pollicis brevis actions

A

Flexes proximal phalanx of thumb

243
Q

Flexor pollicis longus origin

A

Anterior surface of radius and interosseous membrane

244
Q

Flexor pollicis longus insertion

A

Palmar base of distal phalanx of thumb

245
Q

Flexor pollicis longus innervation

A

Median nerve (anterior interosseous nerve)

246
Q

Flexor pollicis longus blood supply

A

Anterior interosseous artery

247
Q

Flexor pollicis longus actions

A

Flexes phalangeal bones of thumb

248
Q

Palmaris longus origin

A

Medial epicondyle of humerus

249
Q

Palmaris longus insertion

A

Distal half of flexor retinaculum and palmar aponeurosis

250
Q

Palmaris longus innervation

A

Median nerve

251
Q

Palmaris longus blood supply

A

Posterior ulnar recurrent artery

252
Q

Palmaris longus actions

A

Flexes hand at wrist and tenses palmar aponeurosis

253
Q

Pectoralis major origin

A

Sternal half of clavicle, sternum to 7th rib, cartilages of true ribs, aponeurosis of external abdominal oblique muscle

254
Q

Pectoralis major insertion

A

Lateral lip of intertubercular sulcus of humerus

255
Q

Pectoralis major innervation

A

Medial and lateral pectoral nerves

256
Q

Pectoralis major blood supply

A

Pectoral branch of thoracoacromial artery, perforating branches of internal thoracic artery

257
Q

Pectoralis major actions

A

Flexes, adducts, and medially rotates arm

258
Q

Pectoralis minor origin

A

Outer surface of upper margin of ribs 3–5

259
Q

Pectoralis minor insertion

A

Coracoid process of scapula

260
Q

Pectoralis minor innervatino

A

Medial pectoral nerve

261
Q

Pectoralis minor blood supply

A

Pectoral branch of thoracoacromial artery, and superior and lateral thoracic arteries

262
Q

Pectoralis minor actions

A

Lowers lateral angle of scapula and protracts scapula

263
Q

Pronator quadratus origin

A

Distal fourth of anterior ulna

264
Q

Pronator quadratus insertion

A

Distal fourth of anterior radius

265
Q

Pronator quadratus innervation

A

Median nerve (anterior interosseous nerve)

266
Q

Pronator quadratus blood supply

A

Anterior interosseous artery

267
Q

Pronator quadratus actions

A

Pronates forearm

268
Q

Pronator teres origin

A

Two heads: medial epicondyle of humerus and coronoid process of ulna

269
Q

Pronator teres insertion

A

Midway along lateral surface of radius

270
Q

Pronator teres innervation

A

Median nerve

271
Q

Pronator teres blood supply

A

Anterior ulnar recurrent artery

272
Q

Pronator teres actions

A

Pronates forearm and weakly flexes elbow

273
Q

Serratus anterior origin

A

Lateral surfaces of upper 8–9 ribs

274
Q

Serratus anterior insertion

A

Costal surface of medial border of scapula

275
Q

Serratus anterior innervation

A

Long thoracic nerve

276
Q

Serratus anterior blood supply

A

Lateral thoracic artery

277
Q

Serratus anterior actions

A

Protracts and rotates scapula and holds it against thoracic wall

278
Q

Subclavius origin

A

Upper border of 1st rib and its cartilage

279
Q

Subclavius insertion

A

Inferior surface of middle third of clavicle

280
Q

Subclavius innveration

A

Nerve to subclavius

281
Q

Subclavius blood supply

A

Clavicular branch of thoracoacromial artery

282
Q

Subclavius actions

A

Anchors and depresses clavicle

283
Q

Supinator origin

A

Lateral epicondyle of humerus, radial collateral and annular ligaments, supinator fossa, and crest of ulna

284
Q

Supinator insertion

A

Lateral, posterior, and anterior surfaces of proximal third of radius

285
Q

Supinator innervation

A

Radial nerve (deep branch)

286
Q

Supinator blood supply

A

Radial recurrent artery, posterior interosseous arteries

287
Q

Supinator actions

A

Supinates forearm

Anatomy (23 decks)

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