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anatomy y1 > upper limb muscles > Flashcards

upper limb muscles Flashcards

1
Q

which nerve supplies the trapezius

A

spinal accessory

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2
Q

what are the actions of the trapezius

A

lateral rotation of scapula in abduction beyond 90 degrees
elevation
retraction
depression

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3
Q

which nerve supplies the rhomboids

A

dorsal scapula

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4
Q

what are the actions of the rhomboids

A

scapula retraction and medial rotation

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5
Q

which nerve supplies levator scapulae

A

cervical nerves

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6
Q

what is the action of levator scapulae

A

scapula elevation

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7
Q

which nerve supplies serratus anterior

A

long thoracic

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8
Q

what are the actions of serratus anterior

A

scapula protraction and lateral rotation

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9
Q

which nerve supplies pectoralis minor

A

medial pectoral

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10
Q

which nerve supplies the deltoid

A

axillary

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11
Q

what are the actions of the deltoid

A

shoulder abduction 20-90 degrees
anterior fibres: flexion of shoulder
posterior fibres: extension of shoulder

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12
Q

which nerves supply pectoralis major

A

medial and lateral pectoral nerves

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13
Q

what are the actions of pectoralis major

A

shoulder flexion
medial rotation
adduction when working with extensors
sternal head: flexes shoulder from anatomical position
clavicular head: extend shoulder from flexed position

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14
Q

which nerve supplies latissimus dorsi

A

thoracodorsal

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15
Q

what are the actions of latissimus dorsi

A

shoulder extension
medial rotation
adduction when working with flexors

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16
Q

which nerve supplies teres major

A

lower subscapular

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17
Q

what are the actions of teres major

A

shoulder extension
medial rotation
adduction when working with flexors

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18
Q

which nerve supplies supraspinatus

A

suprascapular

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19
Q

what is the action of supraspinatus

A

initiates shoulder abduction

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20
Q

which nerve supplies infraspinatus

A

suprascapular

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21
Q

what is the action of infraspinatus

A

lateral rotation of shoulder

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22
Q

which nerve supplies teres minor

A

axillary

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23
Q

what is the action of teres minor

A

lateral rotation of shoulder

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24
Q

which nerve supplies supscapularis

A

upper and lower subscapular

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25
what is the action of subscapularis
medial rotation of shoulder
26
which nerve supplies coraco-brachialis
musculocuaneous
27
what is the action of coraco-brachialis
weak shoulder flexor
28
which nerve supplies triceps brachii
radial
29
what are the actions of triceps brachii
elbow extension long head: shoulder extension
30
which nerve supplies biceps brachii
musculocutaneous
31
what are the actions of biceps brachii
flexion of elbow supination of forearm
32
which nerve supplies brachialis
musculocutaneous
33
what is the action of brachialis
flexion of elbow
34
which nerve supplies the anconeus
radial
35
what is the action of the anconeus
abducts ulnar during pronation of the forearm
36
which nerve supplies palmaris longus
median
37
what are the actions of palmaris longus
tenses palmar fascia flexion of wrist
38
which nerve supplies pronator teres
median
39
what is the action of pronator teres
pronation of forearm
40
which nerve supplies flexor carpi radialis
median
41
what are the actions of flexor carpi radialis
flexion of wrist when working with flexor carpi ulnaris abduction of wrist when working with extensor carpi radialis
42
which nerve supplies flexor carpi ulnaris
ulnar
43
what are the actions of flexor carpi ulnaris
flexion of wrist when working with flexor carpi radialis adduction of wrist when working with extensor carpi ulnaris
44
which nerve supplies flexor digitorum superficialis
median
45
what is the action of flexor digitorum superficialis
flexion of the wrist, MCP, and PIP joints
46
what is the action of flexor digitorum profundus
flexion of wrist, MCP, PIP, and DIP joints
47
which nerve supplies flexor pollicis longus
median
48
what are the actions of flexor pollicis longus
flexion of wrist flexion of thumb
49
which nerve supplies pronator quadratus
median
50
what is the action of pronator quadratus
controls pronation in distal forearm
51
which nerve supplies brachioradialis
superficial branch of radial
52
what are the actions of brachioradialis
pronates/supinates to mid prone position flexion of elbow in mid prone position
53
which nerve supplies supinator
deep branch of radial
54
what is the action of supinator
supination of forearm
55
which nerve supplies extensor carpi radialis
superficial branch of radial
56
what are the actions of extensor carpi radialis
extension of wrist when working with extensor carpi ulnaris abduction of wrist when working with flexor carpi radialis
57
which nerve supplies extensor carpi ulnaris
posterior interosseous branch of deep radial
58
what are the actions of extensor carpi ulnaris
extension of wrist when working with extensor carpi radialis adduction of wrist when working with flexor carpi ulnaris
59
which nerve supplies extensor digitorum
posterior interosseous branch of deep radial
60
what are the actions of extensor digitorum
extends wrist and lateral 4 digits - cannot extend digits individually of each other
61
which nerve supplies extensor digiti minimi
posterior interosseous branch of deep radial
62
what is the action of extensor digiti minimi
extends wrist and 5th digit
63
which nerve supplies extensor indicis
posterior interosseous branch of deep radial
64
what is the action of extensor indicis
extends wrist and second digit
65
which nerve supplies extensor pollicis longus
posterior interosseous branch of deep radial
66
what is the action of extensor pollicis longus
extends wrist and thumb
67
which nerve supplies extensor pollicis brevis
posterior interosseous branch of deep radial
68
what is the action of extensor pollicis brevis
extends wrist and thumb
69
which nerve supplies abductor pollicis longus
posterior interosseous branch of deep radial
70
what is the action of abductor pollicis longus
abducts thumb
71
which nerve supplies abductor pollicis brevis
recurrent branch of median
72
what is the action of abductor pollicis brevis
abduction of thumb
73
which nerve supplies flexor pollicis brevis
recurrent branch of median
74
what is the action of flexor pollicis brevis
flexion of thumb
75
which nerve supplies opponens pollicis
recurrent branch of median
76
what is the action of opponens pollicis
rolls thumb over palm of hand
77
which nerves supply the lumbricals
radial x2 ulnar x2
78
what is the action of lumbricals
normal digital sweep - flexion of MCP and extension of PIPs and DIPs
79
which nerve supplies palmar interosseous
ulnar
80
what is the action of palmar interosseous
adduction of digits 2-5
81
which nerve supplies adductor pollicis
ulnar
82
what is the action of adductor pollicis
adduction of thumb
83
which nerve supplies dorsal interosseous
ulnar

anatomy y1 (4 decks)

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