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human anatomy muscles > Upper Limb Muscles > Flashcards

Upper Limb Muscles Flashcards

1
Q

what muscles stabilizes, elevates, depresses, retracts, and laterally rotates the shoulder?

A

trapezius

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2
Q

what muscle elevates scapula and medially rotates?

A

levator scapulae

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3
Q

what muscles stabilize shoulder and retract scapula?

A

rhomboid major and rhomboid minor

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4
Q

what muscle protracts and depresses scapula?

A

pectoralis minor

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5
Q

what muscle protracts scapula and is a prime mover in a forward actions

A

serratus anterior

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6
Q

action of trapezius?

A

stabilizes, elevates, depresses, retracts, and laterally rotates shoulder

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7
Q

action of levator scapulae

A

elevates scapula; and medially rotates

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8
Q

action of rhomboid major and rhomboid minor

A

stabilizes shoulder and retracts scapula

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9
Q

action of pectoralis minor

A

protract and depress scapula

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10
Q

action of serratus anterior

A

protract scapula; prime mover in all forward actions

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11
Q

what nerve innervates the trapezius?

A

CN XI (spinal accessory nerve)

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12
Q

what muscles are innervated by the dorsal scapular nerve?

A

levator scapulae, rhomboid major, and rhomboid minor

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13
Q

what nerve innervates the pectoralis minor?

A

medial pectoral nerve

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14
Q

what nerve innervates the serratus anterior?

A

long thoracic nerve

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15
Q

what muscle flexes, adducts, and medially rotates the humerus?

A

pectoralis major

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16
Q

what muscle extend, adducts, and medially rotates humerus?

A

latissimus dorsi

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17
Q

what muscle flexes, extends, abducts, and medially rotates humerus?

A

deltoid

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18
Q

what muscle flexes and medially rotates humerus?

A

coracobrachialis

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19
Q

what muscle extends and medially rotates humerus

A

teres major

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20
Q

what muscle initially abducts humerus?

A

supraspinatus

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21
Q

what muscle stabilizes shoulder and laterally rotates humerus?

A

infraspinatus

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22
Q

what muscles stabilize the shoulder?

A

infraspinatus, teres minor, subscapularis

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23
Q

what muscles medially rotate the humerus?

A

pectoralis major, latissimus dorsi, deltoid, corocobrachialis, teres major, and subscapularis

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24
Q

what muscles flex the humerus?

A

pectoralis major, deltoid, coracobrachialis

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25
what muscles extend the humerus?
latissimus dorsi, deltoid, teres major
26
what muscles adduct the humerus?
pectoralis major, latissimus dorsi, teres minor
27
what muscles abduct the humerus?
pectoralis major, deltoid, supraspinatus
28
what muscles laterally rotate the humerus
infraspinatus and teres minor
29
what muscle stabilizes the shoulder and laterally rotates and adducts the humerus?
teres minor
30
what muscle stabilizes the shoulder and medially rotates the humerus?
subscaplaris
31
action of pectoralis major?
flex, adduct, medially rotate humerus
32
action of latissimus dorsi
extend, adduct, medially rotate humerus
33
action of deltoid
flex, extend, abduct, medially rotate humerus
34
action of coracobrachialis
flex and medially rotate humerus
35
action of teres major
extend and medially rotate humerus
36
action of supraspinatus
initial abduction of humerus
37
action of infraspinatus
stabilizes shoulder and laterally rotates humerus
38
action of teres minor
stabilizes shoulder and medially rotates humerus
39
action of subscapularis
stabilizes shoulder and medially rotates humerus
40
what nerves innervate the pectoralis major
medial and lateral pectoral nerve
41
what nerve innervates the latissimus dorsi?
thoracodorsal nerve
42
what nerve innervates the deltoid?
axillary nerve
43
what nerve innervates the coracobrachialis
musculocutaneous nerve
44
what nerve innervates the teres major
subscapular nerve
45
what nerve innervates the infraspinatus
suprascapular nerve
46
what nerve innervates the supraspinatus
suprascapular nerve
47
what brachial muscles does the suprascapular nerve innervate?
supraspinatus and infraspinatus
48
what nerve innervates the subscapularis
subscapular nerve
49
what muscle flexes at the elbow and shoulder and is a forceful supinator
biceps brachii
50
what muscle is the prime flexor of the elbow?
brachialis
51
what muscles extend the elbow
triceps brachi and anconeus
52
what muscle flexes the elbow
brachioradialis
53
what muscle supinates the forearm
supinator
54
what muscles pronate the forearm
pronator quadratus and pronator teres
55
action of biceps brachii
flexion at elbow and shoulder; forceful supinator
56
action of brachialis
prime flexor of elbow
57
action of triceps brachi
extends elbow
58
action of anconeus
extends elbow
59
action of brachioradialis
flexes elbow
60
action of supinator
supinates forearm
61
action of pronator quadratus
pronates forearm
62
action of pronator teres
pronates forearm
63
what muscles are innervated by the musclulocutaneous nerve?
biceps brachii and brachialis
64
what muscles are innervated by the radial nerve
triceps brachi, anconeus, brachioradialis, supinator
65
what nerve innervates pronator quadratus and pronator teres?
median nerve
66
what muscle flexes the thumb?
flexor pollicis longus
67
what muscle flexes the hand
palmaris longus
68
what muscle flexes and abducts hand
flexor carpi radialis
69
what muscle flexes proximal and middle phalanges (2-5) and flexes wrist?
flexor digitorum superficialis
70
what muslce flexes phalanges 2-5 and flexes wrist
flexor digitorum profundus
71
what muscle flexes and adducts wrist?
flexor carpi ulnaris
72
action of flexor pollicis longus
flexes thumb
73
action of palmaris longus
flexes hand
74
action of flexor carpi radialis
flexes and abducts hand
75
action of flexor digitorum superficialis
flexes proximal and middle phalanges (2-5) and flexes wrist
76
action of flexor digitorum profundus
flexes phalanges 2-5, flexes wrist
77
action of flexor carpi ulnaris
flexes and adducts wrist
78
what nerve innvates flexor pollicis longus
median nerve
79
what nerve innervates plamaris longus
median nerve
80
what nerve innervates flexor carpi radialis
median nerve
81
what nerve innervates flexor digitorum superficialis
median nerve
82
what nerves innervate flexor digitorum profundus
median (digits 2 & 3) and ulnar nerve (digits 4 & 5)
83
what nerve innervates flexor carpi ulnaris
ulnar nerve
84
what muscle abducts the thumb
abductor pollicis longus
85
what muscles extend the thumb
extensor pollicis longus and extensor pollicis brevis
86
what muscles extend and abduct wrist
extensor carpi radialis longus, extensor carpi radialis brevis
87
what muscle extends and adducts wrist
extensor carpi ulnaris
88
what muscle extends writs and digits 2-5
extensor digitorum
89
what muscle extends digit 2
extensor indicis
90
what muscle extends digit 5
extensor digiti minimi
91
action of abductor pollicis longus
abducts thumb
92
action of extensor pollicis longus
extends thumb
93
action of extensor pollicis brevis
extends thumb
94
action of extensor carpi radialis longus and extensor carpi radialis brevis
extend and abduct wrist
95
action of extensor carpi ulnaris
extends and adducts wrist
96
action of extensor digitorum
extends wrist and digits 2-5
97
action of extensor indicis
extends digit 2
98
action of extensor digiti minimi
extends digit 5
99
what nerve innervates digits and thumb and wrist
radial nerve
100
what muscle flexes thumb
flexor pollicis brevis
101
what muscle has action of opposition of thumb
opponens pollicus
102
what muscle adducts thumb?
adductor pollicus
103
what muscle abducts digit 5
abductor digiti minimi
104
what muscle flexes digit 5
flexor digiti minimi
105
what muscle opposes digit 5
opponens digiti minimi
106
what muscle flexes the metacarpophalangeal joints and extends the interphalangeal joints?
lumbricals
107
what muscle adducts the digits
palmar interosseous
108
what muscle abducts digits
dorsal interosseous
109
action of abductor pollicis brevis
abducts thumb
110
action of flexor pollicis brevis
flexes thumb
111
action of opponens pollicus
opposition of thumb
112
action of adductor pollicus
adducts thumb
113
action of abductor digiti minimi
abducts digit 5
114
action of flexor digiti minimi
flexes digit 5
115
action of opponens digiti minimi
opposition of digit 5
116
action of lumbricals
flex the metacarpophalangeal joints and extend the interphalangeal joints
117
action of palmar interosseous
adducts digits
118
action of dorsal interosseous
abducts digits
119
waht nerve innervates abductor pollicis brevis
median nerve
120
what nerve innervates flexor pollicis brevis
median nerve
121
what nerve innervates opponens pollicus
median nerve
122
what nerve innervates adductor pollicus
ulnar nerve
123
what nerve innervates abductor digiti minimi
ulnar nerve
124
what nerve innervates flexor digiti minimi
ulnar nerve
125
what nerve innervates opponens digiti minimi
ulnar nerve
126
what nerves innervate the lumbricals
median (digits 2 & 3) and ulnar nerve (digits 4 & 5)
127
what nerve innervates plamar and dorsal interosseous muscles
ulnar nerve

human anatomy muscles (5 decks)

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