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Muscle Movements Flashcards

1
Q

Movements of biceps brachii

A

Flexion at shoulder joint
Flexion at elbow joint
Supination at radio-ulnar joint

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2
Q

Innervation of biceps brachii

A

Musculocutaneous nerve (C5, C6)

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3
Q

Movement of coracobrachialis

A

Flexion at shoulder joint

Adduction at shoulder joint

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4
Q

Movements of serratus anterior

A 
Scapula abduction (protraction)
Lateral rotation of scapula
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5
Q

Movements of pectoralis minor

A

Scapula abduction

Medial rotation

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6
Q

Movements of rhomboid major and minor

A

Scapula adduction

Scapula medial rotation

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7
Q

Muscles responsible for scapula abduction

A

Serratus anterior

Pectoralis minor

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8
Q

Scapula adduction

A

Middle trapezius muscle fibres

Rhomboid major and minor

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9
Q

Lateral rotation of scapula

A

Superior and inferior fibres of trapezius

Serratus anterior

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10
Q

Scapula medial rotation

A

Levator scapula
Rhomboid major and minor
Pectoralis minor

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11
Q

Movements of subscapularis

A

Medially rotates and
Adducts at shoulder and elbow
Stability

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12
Q

Actions of supraspinatus

A

Laterally rotates and abducts at humerus

Stability

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13
Q

Actions of infraspinatus

A

Laterally rotates the arm

Stability

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14
Q

Actions of teres minor

A

Laterally rotates arm
Weakly adducts arm
Stability

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15
Q

Actions of deltoid

A

Anterior fibres- flexion and medially rotation of shoulder
Middle fibres- abducts shoulder
Posterior fibres- extension and laterally rotation of shoulder

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16
Q

Actions of pectoralis major

A

Adducts and medially rotates glenohumeral

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17
Q

Actions of trapezius

A

Superior-elevates and laterally rotates arm
Middle- retracts and laterally rotates arm
Inferior- depresses scapula

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18
Q

Actions of teres major

A

Adduction and medially rotates shoulder

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19
Q

Actions of latissimus dorsi

A

Extension of shoulder

Adduction and medially rotates shoulder

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20
Q

Muscles responsible for adduction of shoulder

A

Pectoralis major
Teres major
Latissimus dorsi
Subscapularis

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21
Q

Muscles responsible for extension of shoulder

A

Posterior fibres of deltoid

Latissimus dorsi

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22
Q

Muscles responsible for flexion of shoulder

A

Anterior fibres of deltoid
Clavicular head of pectoralis major
Coracobrachialis

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23
Q

Muscles responsible for abduction of shoulder

A

Middle fibres of deltoid

Supraspinatus

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24
Q

Muscles responsible for medial rotation of shoulder

A

Pectoralis major
Teres minor
Latissimus dorsi
Subscapularis

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25
Q

Muscles responsible for external rotation of shoulder

A

Teres minor

Infraspinatus

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26
Q

Coracobrachialis movements

A

Flexion and adduction at shoulder joint

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27
Q

Biceps brachii movements?

A

Flexion at shoulder and elbow

Supination

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28
Q

Brachialis movements?

A

Flexion at elbow

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29
Q

Triceps brachii movement

A

Extension at scapula and elbow

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30
Q

Anconeus movements

A

Extension at elbow

Abduction of ulna during pronation

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31
Q

What muscles are responsible for flexion at elbow?

A

Biceps brachii
Brachioradialis
Brachialis

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32
Q

What muscles are responsible for extension at elbow

A

Triceps brachii

Anconeus muscle

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33
Q

Muscles responsible for supination

A

Biceps brachii
Supinator
Extensor pollicis longus
Extensor carpi radialis

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34
Q

Muscles responsible for pronation?

A 
Pronator teres
Pronator quadratus 
Brachioradialis 
Flexor carpi radialis 
Palmaris longus
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35
Q

What action occurs when extensor and flexor carpi ulnaris work together?

A

Adduction of wrist

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36
Q

What muscles cause abduction of wrist

A

Extensor carpi radialis brevis and longus

Flexor carpi radialis

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37
Q

Action of flexor digitorum superficialis

A

Flexion of wrist
Flexion of proximal interphalangeal joints
Flexes proximal phalangeal at metacarpophalangeal joints

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38
Q

Action of pronator teres

A

Pronates arm

Flexes arm

39
Q

Action of flexor carpi radialisis

A

Flexion of wrist

Abduction of wrist

40
Q

Action of Palmaris longus?

A

Flexion at wrist

Abduction of arm

41
Q

Action of palmaris longus?

A

Flexion of hand and wrist

Tenses palmar aponeurosis

42
Q

Action of flexor carpi ulnaris

A

Flexes wrist

Adducts wrist

43
Q

Action of brachioradialis

A

Flexion at elbow

Maximal flexion when forearm is mid-pronated

44
Q

Action of flexor digitorum profundus

A

Flexes wrist joint

Flexes distal interphalangeal joints of 2nd, 3rd, 4th and 5th digits

45
Q

Actions of flexor pollicis longus?

A

Flexes metacarpalphalangeal and interphalangeal joints of thumb
Flexes wrist

46
Q

Action of pronator quadratus

A

Pronates forearm

Deep fibres bind radius and ulna together

47
Q

Action of abductor pollicis brevis?

A

Abducts thumb

48
Q

Action of flexor pollicis brevis

A

Flexes thumb

49
Q

Action of opponens pollicis

A

Opposes thumb

Draws 1st metacarpal medially to centre of palm and rotates

50
Q

Action of abductor digiti minimi

A

Abducts 5th finger at proximal phlanx

51
Q

Action of flexor digiti minimi

A

Flexes 5th finger at proximal phlanx

52
Q

Action of opponens digiti minimi

A

Draws 5th metacarpal anterior and rotates it

53
Q

Action of adductor pollicis

A

Adducts thumb

54
Q

Action of lumbricals?

A

Flex metacarpophalangeal joints

Extend interphalangeal joints of 2nd-5th

55
Q

Action of dorsal interossei

A

Abducts finger (DAB)

56
Q

Action of palmar interossei

A

Adducts finger (PAD)

57
Q

Action of extensor pollicis brevis

A

Extension at MCP joint

58
Q

Action of extensor pollicis brevis

A

Extension at distal phalanx of thumb

59
Q

Action of abductor pollicis longus?

A

Abducts thumb at CMC joint

60
Q

Action of extensor digitorum

A

Extends wrist

Extends 4 fingers primarily at MCP

61
Q

Action of supinator muscle?

A

Supinate forearm

62
Q

Action of extensor carpi radialis longus and brevis?

A

Extension and abduction of wrist

63
Q

Action of extensor carpi ulnaris

A

Extension and adducts wrist

64
Q

Muscles responsible for flexion of hip

A

Iliopsoas
Pectineus
Sartorius
Quadriceps femoris

65
Q

Extensor muscles of hip

A

Gluteus maximus,
Hamstring muscles (long/short heads of bicep femoris, semitendinosus and semimembranosus)
Adductor Magnus

66
Q

Muscles responsible for adduction of hip?

A 
Adductor Magnus,
Adductor longus,
Adductor brevis,
Gracilis,
Obturator externus
67
Q

Abductor muscles of hip?

A

Gluteus medius
Gluteus minimus
Deep Gluteal muscles

68
Q

Muscles responsible for external (lateral) rotation of hip

A 
Gluteus maximus
Piriformis 
Obturator internus 
Superior and inferior gemelli
Quadratus femoris
69
Q

Internal (medial) rotator muscles of hip?

A

Tensor fasica latae
Gluteus medius
Gluteus minimus

70
Q

Actions of quadriceps femoris

A

Extends knee joint
Rectus femoris aids iliopsoas to flex hip joint
Rectus femoris stabilises hip joint
Laterally rotates hip

71
Q

Actions of sartorius muscle?

A

Flexes hip
Abducts hip
Laterally rotates hip
Flexes leg at knee

72
Q

Action of gluteus maximus

A

Extension of hip between flexed and standing positions
External rotation
Steadies thigh and assists in rising from sitting position

73
Q

Action of gluteus medius and minimus

A

Abducts hip
Medially rotates hip
Keeps pelvis levels when opposite limb is elevated

74
Q

Action of tensor fascia latae

A

Flexes hip
Medially rotates hip
With gluteus maximus stabilises extended knee joint

75
Q

Action of piriformis

A

Steady femoral head into acetabulum
Stabilise hip
Laterally rotates hip
Abducts a flexed hip

76
Q

Action of obturator internus

A

Steady femoral head into acetabulum
Stabilise hip
Laterally rotates hip
Abducts a flexed hip

77
Q

Action of superior/ inferior gemelli

A

Steady femoral head into acetabulum
Stabilise hip
Laterally rotates hip
Abducts a flexed hip

78
Q

Muscles responsible for flexion of knee?

A 
Sartorius 
Gracilis
Hamstrings 
Popliteus
Gastrocnemius
79
Q

Muscles responsible for extension of knee

A 
Rectus femoris 
Vastus lateralis 
Vastus intermedius 
Vastus medialis 
(Quadriceps femoris)
80
Q

Action of articularis genu?

A

Prevents folds of membrane from being compressed between femur and patella within knee

81
Q

Action of semitendinosus and semimembranosus?

A

Extends hip joint
Flexes knee
Rotates leg medially when knee flexed
When hip and knee are flexed they can extend trunk

82
Q

Action of long/ short head of biceps femoris?

A

Extends hip
Flexes knee
Rotates knee joint laterally when knee is flexed

83
Q

Anterior leg compartment actions

A

Dorsiflexion of ankle

Extension of big toe

84
Q

Action of fibularis longus and brevis

A

Every foot

Weakly plantarflexion ankle joint

85
Q

Muscles responsible for plantarflexion of ankle

A

Lateral compartment of leg (fibularis longus, fibulairs brevis)
Posterior compartment of leg (gastrocnemius, soleus, plantaris, flexor hallucis longus, flexor Digitorum longus, tibialis posterior)

86
Q

Gastrocnemius actions

A

Plantarflexion of foot
Flexes knee
Raises heel during walking

87
Q

Soleus action

A

Plantarflexes ankle

Steadies leg on foot

88
Q

Plantaris action

A

Proprioception

Can assist gastrocnemius during plantar flexion

89
Q

Actions of popliteus

A

Unlocks fully extended knee
Weakly flexes the knee
Medially rotates the tibia

90
Q

Action of flexor hallucis longus

A

Flexes big toe
Weakly plantarflexes ankle
Supports medially longitudinal arch of foot

91
Q

Action of flexor digitorum longus?

A

Flexes lateral 4 digits
Plantarflexes ankle
Supports longitudinal arches of foot

92
Q

Actions of tibialis posterior?

A

Plantarflexes ankle
Inverts foot
Supports medial longitudinal arch

93
Q

Action of plantar interossei

A

Adduct

PAD

94
Q

Action of dorsal interossei

A

Abduct (DAB)

MSK (40 decks)

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