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MBChB YR2 MSK > Anatomy: Muscles of the Upper Limb > Flashcards

Anatomy: Muscles of the Upper Limb Flashcards

1
Q

Which nerve supplies brachialis?

A

Musculocutanous nerve

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2
Q

Name the actions of palmaris longus

A

Flexion at the wrist

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3
Q

Name the extrinsic muscles of the shoulder

A

Trapezius, latissimus dorsi, levator scapulae, rhomboid major, rhomboid minor

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4
Q

Which nerve supplies triceps brachii?

A

Radial nerve

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5
Q

Name the muscle indicated by the arrow

A

Extensor carpi ulnaris

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6
Q

Which nerves supply the lumbricals?

A

Medial nerve (lateral 2), deep branch of ulnar nerve (medial 2)

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7
Q

Name the distal attachment of extensor carpi radialis longus

A

Dorsal aspect of base of 2nd metacarpal

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8
Q

Name the muscle indicated by the arrow

A

Extensor indicis

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9
Q

Name the actions of abductor pollicis brevis

A

Abducts the thumb, helps opposition of the thumb

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10
Q

Name the distal attachment of the dorsal interossei

A

Extensor expansions and proximal phalanx of each finger

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11
Q

Name the distal attachment of brachialis

A

Ulnar tuberosity

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12
Q

Which nerve supplies flexor pollicis longus?

A

Median nerve (anterior interosseous branch)

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13
Q

Which nerve supplies pronator teres?

A

Median nerve

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14
Q

Name the muscle indicated by the arrow

A

Abductor digiti minimi

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15
Q

Which nerve supplies abductor pollicis brevis?

A

Recurrent branch of median nerve

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16
Q

Name the proximal attachment of rhomboid minor

A

Spinous processes of C7-T1 vertebrae

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17
Q

Name the distal attachment of flexor carpi ulnaris

A

Pisiform carpal bone (metacarpals on ulnar side)

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18
Q

Name the distal attachment of abductor pollicis brevis

A

Lateral side of base of proximal phalynx of thumb

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19
Q

Which nerve supplies supinator?

A

Radial nerve (deep branch)

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20
Q

Name the actions of extensor carpi radialis longus

A

Extends and abducts the hand at the wrist joint; active during clenching

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21
Q

Name the muscle indicated by the arrow

A

Flexor pollicis brevis

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22
Q

Name the distal attachment of triceps brachii

A

The heads converge to form the triceps tendon and insert into the olecranon process of the ulna

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23
Q

Name the proximal attachment of teres minor

A

Posterior surface of the scapula, adjacent to its lateral border

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24
Q

Name the proximal attachment of extensor indicis

A

Posterior surface of distal 1/3 of ulna and interosseous membrane

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25
Q

Name the actions of flexor digitorum superficialis

A

Flexes the metacarpophalangeal joints and proximal interphalangeal joints at the 4 fingers, and flexes at the wrist

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26
Q

Which nerve supplies rhomboid major?

A

Dorsal scapular nerve

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27
Q

Which nerve supplies trapezius?

A

CN XI (accessory nerve)

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28
Q

Name the distal attachment of extensor pollicis longus

A

Dorsal aspect of base of distal phalynx of thumb

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29
Q

Which nerve supplies levator scapulae?

A

Dorsal scapular nerve

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30
Q

Name the proximal attachment of subscapularis

A

Subscapular fossa on the costal surface of the scapula

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31
Q

Which nerve supplies abductor digiti minimi?

A

Deep branch of ulnar nerve

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32
Q

Which nerve supplies all of the muscles of the anterior forearm except for the flexor carpi ulnaris and the medial part of flexor digitorum profundus?

A

Median nerve

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33
Q

Name the proximal attachment of flexor digitorum superficialis

A

Medial epicondyle of humerus, coronoid process of ulna and radial head

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34
Q

Name the muscle indicated by the arrow

A

Extensor carpi radialis brevis

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35
Q

Name the muscle indicated by the arrow

A

Flexor digitorum profundus

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36
Q

Name the actions of the middle fibres of trapezius

A

Retract the scapula

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37
Q

Name the muscle indicated by the arrow

A

Extensor digiti minimi

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38
Q

Name the distal attachment of levator scapulae

A

Medial border of the scapula

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39
Q

Name the actions of extensor digitorum

A

Extends medial four fingers at the MCP and IP joints

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40
Q

Name the deep hypothenar muscle

A

Opponens digiti minimi

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41
Q

Which nerve supplies opponens pollicis?

A

Recurrent branch of median nerve

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42
Q

Which nerve supplies deltoid?

A

Axillary nerve

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43
Q

Which nerve supplies flexor carpi radialis?

A

Median nerve

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44
Q

Which nerve supplies biceps brachii?

A

Musculocutanous nerve

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45
Q

Name the muscle of the posterior upper arm

A

Triceps brachii

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46
Q

Name the actions of rhomboid major

A

Retraction of the scapula and inferior rotation of glenoid fossa

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47
Q

Name the proximal attachment of supinator

A

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

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48
Q

Name the distal attachment of flexor pollicis brevis

A

Lateral side of base of proximal phalynx of thumb

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49
Q

Name the distal attachment of deltoid

A

Deltoid tuberosity of the humerus

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50
Q

Name the muscle indicated by the arrow

A

Subscapularis

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51
Q

Name the distal attachment of brachioradialis

A

Lateral surface of distal end of the radius, just before the radial styloid process

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52
Q

Name the muscle indicated by the arrow

A

Teres major

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53
Q

Which nerve supplies extensor carpi ulnaris?

A

Radial nerve (deep branch)

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54
Q

Which nerve supplies flexor digitorum superficialis

A

Median nerve

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55
Q

Name the muscle indicated by the arrow

A

Infraspinatus

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56
Q

Name the distal attachment of abductor digiti minimi

A

Medial side of base of proximal phalanx of 5th digit

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57
Q

Name the distal attachment of extensor indicis

A

Extensor expansion of 2nd digit

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58
Q

Which nerve supplies all of the deep extrinsic muscles of the shoulder?

A

Dorsal scapular nerve

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59
Q

Name the proximal attachment of pronator teres

A

Two origins, one from the medial epicondyle, and the other from the coronoid process of the ulna

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60
Q

What is the flexor retinaculum?

A

Thickening of the antebrachial fascia of the anterior forearm that arches over the carpal bones, covering them and forming the carpal tunnel

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61
Q

Name the deep muscle of the thenar eminence

A

Opponens pollicis

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62
Q

What are the actions of the superficial muscles of the posterior forearm?

A

Responsible for extension, abduction and adduction of the wrist, and extension of the fingers (apart from brachioradialis)

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63
Q

Name the actions of extensor indicis

A

Extends the index finger, helps extend hand at wrist

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64
Q

Name the muscle indicated by the arrow

A

Supraspinatus

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65
Q

Name the muscle indicated by the arrow

A

Flexor carpi radialis

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66
Q

Movement of biceps brachii within the intertubercular groove of the humerus can cause what pathology?

A

Biceps tendonitis

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67
Q

Name the proximal attachment of extensor digiti minimi

A

Lateral epicondyle of humerus (common extensor origin)

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68
Q

Name the distal attachment of the palmar interossei

A

Bases of proximal phalanges, extensor expansion and proximal phalanx of same finger

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69
Q

Which nerve supplies subscapularis?

A

Upper and lower subscapular nerves

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70
Q

What causes ‘painful arc syndrome’?

A

Impingement of supraspinatus tendon between the humerus and the acromion process

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71
Q

Name the distal attachment of pronator quadratus

A

Anterior surface of the radius

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72
Q

Name the proximal attachment of the long head of triceps brachii

A

Infraglenoid tubercle of the scapula

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73
Q

Name the superficial muscles of the thenar eminence

A

Abductor pollicis brevis, flexor pollicis brevis

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74
Q

Name the actions of the palmar interossei

A

Adducts the fingers at the MCP joint

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75
Q

Name the actions of latissimus dorsi

A

Extends, adducts, and medially rotates the upper limb

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76
Q

Name the distal attachment of rhomboid minor

A

Medial border of the scapula

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77
Q

Name the distal attachment of the lumbricals

A

Extensor expansion of the same digit

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78
Q

Name the proximal attachment of infraspinatus

A

Infraspinatus fossa of the scapula

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79
Q

Name the structure that separates cracobrachialis from the triceps

A

Medial intermuscular septae

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80
Q

Name the muscles indicated by the arrow

A

Palmar interssei

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81
Q

Name the proximal attachment of the lateral head of triceps brachii

A

Humerus (superior to radial groove)

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82
Q

Name the proximal attachment of the medial head of triceps brachii

A

Humerus (inferior to radial groove)

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83
Q

Name the muscle indicated by the arrow

A

Supinator

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84
Q

Name the distal attachment of extensor digiti minimi

A

Extensor expansions of 5th digit

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85
Q

Name the proximal attachment of abductor pollicis brevis

A

Flexor retinaculum and tubercles of scaphoid and trapezium

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86
Q

Name the proximal attachment of latissimus dorsi

A

Spinous processes of T7-T12, iliac crest, thoracolumbar fascia and the inferior 3 ribs

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87
Q

Name the muscle indicated by the arrow

A

Extensor pollicis longus

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88
Q

Name the muscle indicated by the arrow

A

Trapezius

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89
Q

Which nerve supplies teres major?

A

Lower subscapular nerve

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90
Q

Name the actions of flexor carpi radialis

A

Flexion and abduction at the wrist

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91
Q

How many lumbricals are there?

A

4 - 1 for each finger

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92
Q

Name the muscle indicated by the arrow

A

Flexor digiti minimi

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93
Q

Which nerve supplies palmaris longus?

A

Median nerve

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94
Q

Name the muscle indicated by the arrow

A

Latissimus dorsi

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95
Q

Which nerve supplies extensor carpi radialis brevis?

A

Radial nerve (deep branch)

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96
Q

Name the intermediate muscles of the anterior compartment of the forearm

A

Flexor digitorum superficialis

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97
Q

Which nerve supplies the dorsal interossei?

A

Deep branch of ulnar nerve

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98
Q

Name the actions of abductor pollicis longus

A

Abducts the thumb and extends it at CMC joint

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99
Q

Name the actions of opponens pollicis

A

Opposes the thumb

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100
Q

Name the proximal attachment of deltoid

A

Lateral 1/3 of the clavicle, the acromion, and the spine of the scapula

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101
Q

Name the muscle indicated by the arrow

A

Infraspinatus

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102
Q

Name the actions of coracobrachialis

A

Flexion of the arm at the shoulder, weak adduction

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103
Q

Name the muscles of the upper arm

A

Biceps brachii, coracobrachialis, brachialis, triceps brachii

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104
Q

Name the superficial muscles of the anterior compartment of the forearm

A

Palmaris longus, pronator teres, flexor carpi radialis, flexor carpi ulnaris

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105
Q

Name the muscle indicated by the arrow

A

Rhomboid major

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106
Q

Name the actions of brachialis

A

Flexion at the elbow

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107
Q

Which nerve supplies flexor carpi ulnaris and the medial part of flexor digitorum profundus?

A

Ulnar nerve

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108
Q

Which nerve supplies flexor carpi ulnaris?

A

Flexion and adduction at the wrist

109
Q

Name the rotator cuff muscles

A

Supraspinatus, infraspinatus, teres minor, subscapularis

110
Q

Name the muscle indicated by the arrow

111
Q

Name the distal attachment of supraspinatus

A

Greater tubercle of the humerus

112
Q

Name the distal attachment of palmaris longus

A

Palmar aponeurosis

113
Q

Name the distal attachment of extensor digitorum

A

Extensor expansions of medial 4 digits

114
Q

Name the distal attachment of teres minor

A

Greater tubercle of the humerus

115
Q

Name the proximal attachment of flexor pollicis brevis

A

Flexor retinaculum and tubercles of scaphoid and trapezium

116
Q

Name the muscle indicated by the arrow

A

Levator scapulae

117
Q

Name the distal attachment of extensor carpi radialis brevis

A

Dorsal aspect of base of 3rd metacarpal

118
Q

Which arteries supply the posterior upper arm?

A

Profunda brachii artery and ulnar collateral artery

119
Q

Name the muscles pictured in the diagram

A

Dorsal interossei

120
Q

Name the actions of the dorsal interossei

A

Abducts the fingers at the MCP joint

121
Q

Name the muscle indicated by the arrow

A

Brachialis

122
Q

Name the actions of triceps brachii

A

Weak extension of the arm at the shoulder joint, and extension of the forearm at the elbow, resists dislocation of the humerus, especially during adduction

123
Q

Name the distal attachment of teres major

A

Medial lip of the intertubecular groove of the humerus

124
Q

Name the actions of flexor pollicis longus

A

Flexes the interphalangeal joint and metacarpophalangeal joint of the thumb

125
Q

Name the proximal attachment of the palmar interossei

A

Medial or lateral surface of a metacarpal

126
Q

Which vein drains the anterior compartment of the upper arm?

A

Brachial vein

127
Q

Name the actions of extensor carpi radialis brevis

A

Extends and abducts the hand at the wrist joint

128
Q

Which nerve supplies brachioradialis?

A

Radial nerve

129
Q

Name the actions of supinator

A

Supinates the forearm, rotates radius to turn palm anteriorly or superiorly (if elbow is flexed)

130
Q

Name the actions of teres minor

A

Stabilises head of humerus in glenoid, laterally rotates the arm

131
Q

Name the actions of the lumbricals

A

Flex the MCP and extend the PIP joints

132
Q

Pain felt in the area of the medial epicondyle (‘golfer’s elbow’) can be a result of tendonitis of which tendon?

A

Common flexor tendon

133
Q

Which nerve supplies all of the muscles of the posterior forearm?

A

Radial nerve

134
Q

Name the distal attachment of flexor digitorum profundus

A

Splits into four tendons at the wrist that pass through the carpal tunnel and attach to the distal phalanges of the four fingers

135
Q

Name the muscle indicated by the arrow

A

Opponens pollicis

136
Q

Which nerve supplies infraspinatus?

A

Suprascapular nerve

137
Q

Name the distal attachment of rhomboid major

A

Medial border of the scapula

138
Q

Which artery supplies the posterior compartment of the forearm?

A

Posterior interosseous artery (branch of the ulnar artery)

139
Q

Name the muscle indicated by the arrow

A

Flexor carpi ulnaris

140
Q

Name the muscle indicated by the arrows

A

Flexor digitorum superficialis

141
Q

Name the distal attachment of latissimus dorsi

A

Fibres converge into a tendon that attaches to the intertubular sulcus of the humerus

142
Q

Name the distal attachment of extensor pollicis brevis

A

Dorsal aspect of base of distal phalynx of thumb

143
Q

Name the muscles indicated by the arrow

A

Lumbricals

144
Q

Name the deep muscles of the posterior forearm

A

Supinator, abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus, extensor indicis

145
Q

Which artery supplies the anterior compartment of the upper arm?

A

Brachial artery

146
Q

Name the proximal attachment of flexor carpi radialis

A

Medial epicondyle

147
Q

Name the distal attachment of supinator

A

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

148
Q

Name the proximal attachment of brachialis

A

Medial and lateral surfaces of the humeral shaft

149
Q

Name the muscle indicated by the arrow

A

Subscapularis

150
Q

Which nerve supplies coracobrachialis?

A

Musculocutanous nerve

151
Q

Name the intrinsic muscles of the shoulder

A

Deltoid, teres major, rotator cuff muscles (supraspinatus, infraspinatus, teres minor, subscapularis)

152
Q

Name the actions of teres major

A

Adducts and extends the shoulder, and medially rotates the arm

153
Q

Name the proximal attachment of extensor pollicis longus

A

Posterior surface of middle 1/3 of ulna and interosseous membrane

154
Q

Which nerve supplies extensor digitorum?

A

Radial nerve (deep branch)

155
Q

Name the muscle indicated by the arrow

A

Extensor pollicis brevis

156
Q

Name the muscle indicated by the arrow

A

Extensor digitorum

157
Q

Name the muscle indicated by the arrow

A

Rhomboid minor

158
Q

Which nerve supplies teres minor?

A

Axillary nerve

159
Q

Name the actions of abductor digiti minimi

A

Abducts the 5th digit; assists in flexion of its proximal phalanx

160
Q

Name the proximal attachment of opponens digiti minimi

A

Hook of hamate and flexor retinaculum

161
Q

Name the muscle indicated by the arrow

A

Teres minor

162
Q

Name the distal attachment of flexor carpi radialis

A

Base of metacarpals II and III (metacarpals on the radial side)

163
Q

Name the actions of infraspinatus

A

Stabilises head of humerus in glenoid, laterally rotates the arm

164
Q

Name the actions of flexor digiti minimi

A

Flexes proximal phalanx of 5th digit

165
Q

Which nerve supplies all of the muscles in the anterior arm?

A

Musculocutanous nerve

166
Q

Name the proximal attachment of the short head of biceps brachii

A

Coracoid process of the scapula

167
Q

Name the muscle indicated by the arrow

A

Opponens digiti minimi

168
Q

Name the superficial hypothenar muscles

A

Abductor digiti minimi, flexor digiti minimi

169
Q

Name the distal attachment of opponens digiti minimi

A

Medial border of 5th metacarpal

170
Q

Name the proximal attachment of levator scapulae

A

Transverse processes of the C1-C4 vertebrae

171
Q

Name the proximal attachment of teres major

A

Inferior angle of the scapula

172
Q

Name the proximal attachment of abductor digiti minimi

173
Q

Name the proximal attachment of flexor digiti minimi

A

Hook of hamate and flexor retinaculum

174
Q

Which nerve supplies rhomboid minor?

A

Dorsal scapular nerve

175
Q

Name the actions of the upper fibres of trapezius

A

Elevate the scapula and rotates it during abduction of the arm

176
Q

Which nerve supplies extensor pollicis longus?

A

Radial nerve (posterior interosseous branch)

177
Q

Which nerve supplies extensor indicis?

A

Radial nerve (posterior interosseous branch)

178
Q

Name the actions of brachioradialis

A

Flexion of the semi-promated forarm

179
Q

Name the action of pronator teres

A

Pronation of the forearm

180
Q

Name the actions of opponens digiti minimi

A

Draws 5th metacarpal anterior and rotates it, bringing 5th digit into opposition with thumb

181
Q

Name the muscles of the anterior upper arm

A

Biceps brachii, coracobrachialis, brachialis

182
Q

Name the proximal attachment of trapezius

A

The skull, nuchal ligament and the spinous processes of C7-T12

183
Q

Name the distal attachment of flexor digiti minimi

A

Medial side of base of proximal phalanx of 5th digit

184
Q

What travels within the radial groove?

A

The profunda brachii artery and the radial nerve

185
Q

Name the actions of flexor pollicis brevis

A

Flexes the first MCP joint of the thumb

186
Q

Name the shared origin of the superficial flexor muscles of the forearm

A

Common flexor tendon which attaches to the medial epicondyle of the humerus

187
Q

Which nerve supplies latissimus dorsi?

A

Thoracodorsal nerve

188
Q

Which nerve supplies flexor digiti minimi?

A

Deep branch of ulnar nerve

189
Q

Name the muscle indicated by the arrow

A

Pronator teres

190
Q

Which nerve supplies supraspinatus?

A

Suprascapular nerve

191
Q

Name the proximal attachment of extensor digitorum

A

Lateral epicondyle of humerus (common extensor origin)

192
Q

How would you elicit the biceps deep tendon reflex?

A

Place examiners thumb on the biceps tendon (within the cubital fossa) and then strike briskly the thumb with a tendon hammer

193
Q

Name the actions of subscapularis

A

Stabilises head of humerus in glenoid, medially rotates the arm (principle internal rotator)

194
Q

Name the distal attachment of extensor carpi ulnaris

A

Dorsal aspect of base of 5th metacarpal

195
Q

Name the proximal attachment of brachioradialis

A

2/3rds of supracondylar ridge of humerus

196
Q

Name the distal attachment of subscapularis

A

Lesser tubercle of the humerus

197
Q

Name the superficial muscles of the posterior forearm

A

Brachioradialis, extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi, extensor carpi ulnas

198
Q

Which nerves supply flexor digitorum profundus?

A

Medial half innervated by ulnar nerve, lateral half innervated by anterior interosseous branch of the median nerve

199
Q

Name the muscle indicated by the arrow

A

Teres minor

200
Q

Which nerve supplies the palmar interossei?

A

Deep branch of ulnar nerve

201
Q

Name the actions of rhomboid minor

A

Retraction of the scapula and inferior rotation of glenoid fossa

202
Q

Name the actions of extensor pollicis longus

A

Extends all joints of the thumb - CMC, MCP, IPJ

203
Q

Which nerve supplies opponens digiti minimi?

A

Deep branch of ulnar nerve

204
Q

Name the proximal attachment of abductor pollicis longus

A

Posterior surface of proximal halves of ulna, radius and interosseous membrane

205
Q

Name the proximal attachment of opponens pollicis

A

Flexor retinaculum and tubercles of scaphoid and trapezium

206
Q

Name the proximal attachment of extensor pollicis brevis

A

Posterior surface of distal 1/3 of radius and interosseous membrane

207
Q

Name the shared origin of the superficial extensor muscles of the forearm

A

Common extensor tendon which attaches to the lateral epicondyle of the humerus

208
Q

Name the proximal attachment of pronator quadratus

A

Anterior surface of the ulna

209
Q

Which nerve supplies extensor carpi radialis longus?

A

Radial nerve

210
Q

Name the actions of levator scapulae

A

Elevation of the scapula and inferior rotation of gleniod fossa

211
Q

Name the muscle indicated by the arrow

A

Brachioradialis

212
Q

Why is it important that the muscle fibres of the rotator cuff muscles are oriented horizontally or obliquely?

A

Means the muscles hold the head of the humerus in the glenoid fossa of the scapula in all positions of the joint

213
Q

Name the deep muscles of the anterior compartment of the forearm

A

Flexor digitorum profundus, flexor pollicis longus, pronator quadratus

214
Q

Name the actions of the middle fibres of deltoid

A

Major abductor of the arm (taking over from supraspinatus beyond 15°)

215
Q

Name the actions of supraspinatus

A

Stabilises head of humerus in glenoid, abducts arm 0-15°

216
Q

Name the proximal attachment of flexor carpi ulnaris

A

Medial epicondyle with the other superficial flexors, also has a long origin from the ulna

217
Q

Name the proximal attachment of the lumbricals

A

Tendons of flexor digitorum profundus

218
Q

Name the distal attachment of infraspinatus

A

Greater tubercle of the humerus

219
Q

Name the proximal attachment of extensor carpi radialis brevis

A

Lateral epicondyle of humerus (common extensor origin)

220
Q

Name the actions of extensor pollicis brevis

A

Extends at the MCP and CMC joints of the thumb

221
Q

Why can the thenar eminence be affected by carpal tunnel syndrome?

A

Innervated by the median nerve

222
Q

Name the actions of the lower fibres of trapezius

A

Pull scapula inferiorly

223
Q

Name the muscle indicated by the arrow

A

Coracobrachialis

224
Q

Name the actions of flexor digitorum profundus

A

Flexes the distal interphalangeal joints of the fingers, also flexes at metacarpophalangeal joints and at the wrist

225
Q

Which nerve supplies flexor pollicis brevis?

A

Recurrent branch of median nerve

226
Q

Name the proximal attachment of flexor digitorum profundus

A

Ulna and associated interosseous membrane

227
Q

Name the distal attachment of flexor digitorum superficialis

A

Splits into four tendons at the wrist, which travel through the carpal tunnel, and attaches to the middle phalanges of the four fingers

228
Q

Name the distal attachment of coracobrachialis

A

Medial side of the humeral shaft

229
Q

Name the distal attachment of trapezius

A

The clavicle, acromion, and the scapula spine

230
Q

Which nerve supplies extensor digiti minimi?

A

Radial nerve (deep branch)

231
Q

Name the proximal attachment of extensor carpi ulnaris

A

Lateral epicondyle of humerus (common extensor origin)

232
Q

Name the actions of extensor digiti minim

A

Extends the little finger and MCP and IP joints

233
Q

Name the actions of flexor carpi ulnaris

A

Ulnar nerve

234
Q

Name the distal attachment of abductor pollicis longus

A

Dorsal aspect of base of 1st metacarpal

235
Q

Which nerve supplies abductor pollicis longus?

A

Radial nerve (posterior interosseous branch)

236
Q

Name the muscle indicated by the arrow

A

Pronator quadratus

237
Q

Name the muscle indicated by the arrows

A

Triceps brachii

238
Q

Name the muscle indicated by the arrow

A

Extensor carpi radialis longus

239
Q

Name the actions of pronator quadratus

A

Pronates the forearm

240
Q

Name the distal attachment of opponens pollicis

A

Lateral side of 1st metacarpal

241
Q

Which vein drains the posterior upper arm?

A

Profunda brachii vein

242
Q

Name the actions of biceps brachii

A

Supination of the forearm, flexion of the arm at the elbow and at the shoulder

243
Q

Name the proximal attachment of coracobrachialis

A

Coracoid process of the scapula

244
Q

Name the distal attachment of pronator teres

A

Mid-shaft of the radius

245
Q

Name the muscle indicated by the arrow

A

Abductor pollicis longus

246
Q

Which nerve supplies pronator quadratus?

A

Median nerve (anterior interosseous branch)

247
Q

Name the muscle indicated by the arrow

A

Palmaris longus

248
Q

Name the muscle indicated by the arrow

A

Supraspinatus

249
Q

Name the superficial extrinsic muscles of the shoulder

A

Trapezius, latissimus dorsi

250
Q

Name the proximal attachment of rhomboid major

A

Spinous processes of T2-T5 vertebrae

251
Q

Which fingers does the lateral half of flexor digitorum profundus act on?

A

Middle and index fingers

252
Q

Name the proximal attachment of flexor pollicis longus

A

Anterior surface of the radius and surrounding interosseous membrane

253
Q

Name the proximal attachment of extensor carpi radialis longus

A

Lateral supracondylar ridge of humerus

254
Q

Name the proximal attachment of the dorsal interossei

A

Lateral and medial surfaces of metacarpals

255
Q

Name the proximal attachment of palmaris longus

A

Medial epicondyle

256
Q

Pain felt in the area of the lateral epicondyle (‘tennis elbow’) can be a result of tendonitis of which tendon?

A

Common extensor tendon

257
Q

Name the actions of the posterior fibres of deltoid

A

Extension and lateral rotation at shoulder

258
Q

Which fingers does the medial half of flexor digitorum profundus act on?

A

Little and ring fingers

259
Q

Name the distal attachment of flexor pollicis longus

A

Base of the distal phalanx of the thumb

260
Q

Name the actions of extensor carpi ulnaris

A

Extension and adduction of hand at wrist joint (also active during fist clenching)

261
Q

Name the muscle indicated by the arrow

A

Flexor pollicis longus

262
Q

What is the extensor reticulum?

A

Thickened part of the antebrachial fascia that holds the tendons of the extensor muscles in place. as they cross the wrist

263
Q

Name the muscle indicated by the arrow

A

Abductor pollicis brevis

264
Q

Which nerve supplies extensor pollicis brevis?

A

Radial nerve (posterior interosseous branch)

265
Q

Name the actions of the anterior fibres of deltoid

A

Flexion and medial rotation at shoulder

266
Q

Name the proximal attachment of the long head of biceps brachii

A

Supraglenoid tubercle of the scapula

267
Q

Name the deep extrinsic muscles of the shoulder

A

Levator scapulae, rhomboid major, rhomboid minor

268
Q

Name the muscle indicated by the arrows

A

Biceps brachii

269
Q

Name the proximal attachment of supraspinatus

A

Supraspinatus fossa of the scapula

MBChB YR2 MSK (36 decks)

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