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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
Muscles responsible for external rotation of shoulder
Teres minor | Infraspinatus
26
Coracobrachialis movements
Flexion and adduction at shoulder joint
27
Biceps brachii movements?
Flexion at shoulder and elbow | Supination
28
Brachialis movements?
Flexion at elbow
29
Triceps brachii movement
Extension at scapula and elbow
30
Anconeus movements
Extension at elbow | Abduction of ulna during pronation
31
What muscles are responsible for flexion at elbow?
Biceps brachii Brachioradialis Brachialis
32
What muscles are responsible for extension at elbow
Triceps brachii | Anconeus muscle
33
Muscles responsible for supination
Biceps brachii Supinator Extensor pollicis longus Extensor carpi radialis
34
Muscles responsible for pronation?
``` Pronator teres Pronator quadratus Brachioradialis Flexor carpi radialis Palmaris longus ```
35
What action occurs when extensor and flexor carpi ulnaris work together?
Adduction of wrist
36
What muscles cause abduction of wrist
Extensor carpi radialis brevis and longus Flexor carpi radialis
37
Action of flexor digitorum superficialis
Flexion of wrist Flexion of proximal interphalangeal joints Flexes proximal phalangeal at metacarpophalangeal joints
38
Action of pronator teres
Pronates arm | Flexes arm
39
Action of flexor carpi radialisis
Flexion of wrist | Abduction of wrist
40
Action of Palmaris longus?
Flexion at wrist | Abduction of arm
41
Action of palmaris longus?
Flexion of hand and wrist | Tenses palmar aponeurosis
42
Action of flexor carpi ulnaris
Flexes wrist | Adducts wrist
43
Action of brachioradialis
Flexion at elbow | Maximal flexion when forearm is mid-pronated
44
Action of flexor digitorum profundus
Flexes wrist joint | Flexes distal interphalangeal joints of 2nd, 3rd, 4th and 5th digits
45
Actions of flexor pollicis longus?
Flexes metacarpalphalangeal and interphalangeal joints of thumb Flexes wrist
46
Action of pronator quadratus
Pronates forearm | Deep fibres bind radius and ulna together
47
Action of abductor pollicis brevis?
Abducts thumb
48
Action of flexor pollicis brevis
Flexes thumb
49
Action of opponens pollicis
Opposes thumb | Draws 1st metacarpal medially to centre of palm and rotates
50
Action of abductor digiti minimi
Abducts 5th finger at proximal phlanx
51
Action of flexor digiti minimi
Flexes 5th finger at proximal phlanx
52
Action of opponens digiti minimi
Draws 5th metacarpal anterior and rotates it
53
Action of adductor pollicis
Adducts thumb
54
Action of lumbricals?
Flex metacarpophalangeal joints | Extend interphalangeal joints of 2nd-5th
55
Action of dorsal interossei
Abducts finger (DAB)
56
Action of palmar interossei
Adducts finger (PAD)
57
Action of extensor pollicis brevis
Extension at MCP joint
58
Action of extensor pollicis brevis
Extension at distal phalanx of thumb
59
Action of abductor pollicis longus?
Abducts thumb at CMC joint
60
Action of extensor digitorum
Extends wrist | Extends 4 fingers primarily at MCP
61
Action of supinator muscle?
Supinate forearm
62
Action of extensor carpi radialis longus and brevis?
Extension and abduction of wrist
63
Action of extensor carpi ulnaris
Extension and adducts wrist
64
Muscles responsible for flexion of hip
Iliopsoas Pectineus Sartorius Quadriceps femoris
65
Extensor muscles of hip
Gluteus maximus, Hamstring muscles (long/short heads of bicep femoris, semitendinosus and semimembranosus) Adductor Magnus
66
Muscles responsible for adduction of hip?
``` Adductor Magnus, Adductor longus, Adductor brevis, Gracilis, Obturator externus ```
67
Abductor muscles of hip?
Gluteus medius Gluteus minimus Deep Gluteal muscles
68
Muscles responsible for external (lateral) rotation of hip
``` Gluteus maximus Piriformis Obturator internus Superior and inferior gemelli Quadratus femoris ```
69
Internal (medial) rotator muscles of hip?
Tensor fasica latae Gluteus medius Gluteus minimus
70
Actions of quadriceps femoris
Extends knee joint Rectus femoris aids iliopsoas to flex hip joint Rectus femoris stabilises hip joint Laterally rotates hip
71
Actions of sartorius muscle?
Flexes hip Abducts hip Laterally rotates hip Flexes leg at knee
72
Action of gluteus maximus
Extension of hip between flexed and standing positions External rotation Steadies thigh and assists in rising from sitting position
73
Action of gluteus medius and minimus
Abducts hip Medially rotates hip Keeps pelvis levels when opposite limb is elevated
74
Action of tensor fascia latae
Flexes hip Medially rotates hip With gluteus maximus stabilises extended knee joint
75
Action of piriformis
Steady femoral head into acetabulum Stabilise hip Laterally rotates hip Abducts a flexed hip
76
Action of obturator internus
Steady femoral head into acetabulum Stabilise hip Laterally rotates hip Abducts a flexed hip
77
Action of superior/ inferior gemelli
Steady femoral head into acetabulum Stabilise hip Laterally rotates hip Abducts a flexed hip
78
Muscles responsible for flexion of knee?
``` Sartorius Gracilis Hamstrings Popliteus Gastrocnemius ```
79
Muscles responsible for extension of knee
``` Rectus femoris Vastus lateralis Vastus intermedius Vastus medialis (Quadriceps femoris) ```
80
Action of articularis genu?
Prevents folds of membrane from being compressed between femur and patella within knee
81
Action of semitendinosus and semimembranosus?
Extends hip joint Flexes knee Rotates leg medially when knee flexed When hip and knee are flexed they can extend trunk
82
Action of long/ short head of biceps femoris?
Extends hip Flexes knee Rotates knee joint laterally when knee is flexed
83
Anterior leg compartment actions
Dorsiflexion of ankle | Extension of big toe
84
Action of fibularis longus and brevis
Every foot | Weakly plantarflexion ankle joint
85
Muscles responsible for plantarflexion of ankle
Lateral compartment of leg (fibularis longus, fibulairs brevis) Posterior compartment of leg (gastrocnemius, soleus, plantaris, flexor hallucis longus, flexor Digitorum longus, tibialis posterior)
86
Gastrocnemius actions
Plantarflexion of foot Flexes knee Raises heel during walking
87
Soleus action
Plantarflexes ankle | Steadies leg on foot
88
Plantaris action
Proprioception | Can assist gastrocnemius during plantar flexion
89
Actions of popliteus
Unlocks fully extended knee Weakly flexes the knee Medially rotates the tibia
90
Action of flexor hallucis longus
Flexes big toe Weakly plantarflexes ankle Supports medially longitudinal arch of foot
91
Action of flexor digitorum longus?
Flexes lateral 4 digits Plantarflexes ankle Supports longitudinal arches of foot
92
Actions of tibialis posterior?
Plantarflexes ankle Inverts foot Supports medial longitudinal arch
93
Action of plantar interossei
Adduct | PAD
94
Action of dorsal interossei
Abduct (DAB)

MSK (40 decks)

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