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1216- Anatomy, Biomechanics And Movement > Muscles > Flashcards

Muscles Flashcards

1
Q

Rec Fem origin and insertion

A

Anterior inferior iliac spine, reflected head above the acetabulum to the patella upper border

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2
Q

Rec fem action

A

Flex hip extend knee

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3
Q

Rec fem nerve supply

A

Femoral L234

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4
Q

Sartorius origin and insertion

A

Anterior superior iliac spine of innominate

Medial side of tibia with gracilis & semitendinosus

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5
Q

Sartorius action

A

Flexes knee and hip
Laterally rotates and abducts thigh
Medially rotates tibia on femur

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6
Q

Sartorius nerve supply

A

Femoral L23

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7
Q

Gluteus maximus origin and insertion

A

Gluteal surface of ilium, iliac crest, coccyx, sacrum & sacrotuberous ligament

Gluteal tuberosity of femur - 1/4
other 3/4s make up iliotibial tract

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8
Q

Gluteus maximus action

A

Hip extension, lateral rotation and assists abduction

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9
Q

Gluteus maximus nerve supply

A

Inferior gluteal nerve L5S12

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10
Q

Semitendinosus origin and insertion

A

Ischial tuberosity of innominate

Medial surface of tibia medial condyle

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11
Q

Semitendinosus action

A

Flex knee extend hip

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12
Q

Semitendinosus nerve supply

A

Sciatic nerve L5S12

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13
Q

Semimembranosus origin and insertion

A

Ischial tuberosity of innominate

Posteromedial surface of tibia medial condyle

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14
Q

Semimembranosus action

A

Flex knee extend hip

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15
Q

Semimembranosus nerve supply

A

Sciatic L5S12

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16
Q

Biceps femoris origin and insertion

A

Ischial tuberosity

Head of fibula

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17
Q

Biceps femoris action

A

Flex knee extend hip

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18
Q

Biceps femoris nerve supply

A

Sciatic L5S12

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19
Q

Adductor Magnus origin and insertion

A

Ischial tuberosity of innominate

Upper part of linea aspera & adductor tubercle of femur

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20
Q

Adductor Magnus action

A

Adduct thigh. Rotate hip depending on thigh position. Assist hip extension

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21
Q

Adductor Magnus nerve supply

A

Sciatic L4 - Hamstring part
Obturator L23

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22
Q

Tibialis anterior origin and insertion

A

Upper 2/3rds of lateral surface of tibia & Interosseous Membrane

Medial & Inferior Surfaces, Medial Cuneiform & Base of 1st Metatarsal

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23
Q

Tibialis anterior action

A

Dorsiflex and inversion

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24
Q

Tibialis anterior nerve supply

A

Deep peroneal L45

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25
Q

Gastrocnemius origin and insertion

A

Lateral Head: Lateral Aspect of Lateral Femoral Condyle
Medial Head: Popliteal Surface of Femur Superior to Medial Femoral Condyle

Posterior Surface Calcaneus via Calcaneal Tendon (Achilles Tendon)

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26
Q

Gastrocnemius action

A

Plantarflex ankle knee flexion

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27
Q

Gastrocnemius nerve supply

A

Tibial nerve S12

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28
Q

Vastus lateralis origin and insertion

A

Upper lateral part of intertrochanteric line, lower border of greater trochanter, lateral side of gluteal tuberosity, upper half of lateral lip of linea aspera.

Base & lateral border of the patella, blends with rectus femoris.

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29
Q

Vastus lateralis action

A

Extend knee

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30
Q

Vastus lateralis nerve supply

A

Femoral L234

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31
Q

Vastus medialis origin and insertion

A

Medial part intertrochanteric line, medial shaft of upper femur, med lip of linea aspera, med supracondylar line and adductor magnus tendon

Medial border patella

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32
Q

Vastus medialis action

A

Extend knee

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33
Q

Vastus medialis nerve supply

A

Femoral L234

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34
Q

Soleus origin and insertion

A

Posterior Aspect of Head Fibula
Superior ¼ Posterior Surface Tibia
Soleal Line & Medial Border Tibia

Posterior Surface Calcaneus via Calcaneal Tendon (Achilles Tendon)

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35
Q

Soleus action

A

Plantarflex

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36
Q

Soleus nerve supply

A

Tibial S12

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37
Q

Fibularis longus origin and insertion

A

Head & Superior 2/3 of Lateral Surface Fibula

Base 1st Metatarsal
Medial Cuneiform

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38
Q

Fibularis longus action

A

Eversion and assist plantarflexion

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39
Q

Fibularis longus nerve supply

A

Superficial peroneal L5 S1

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40
Q

Flexor digitorum longus origin and insertion

A

Medial Part Posterior Surface
Tibia inferior to Soleal Line
Broad Tendon to Fibula

Base Distal Phalanges Digits 2-5

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41
Q

Flexor digitorum longus action

A

Flexes.distal and proximal interphalangeal joints, metatarsophalangeal and ankle joints.

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42
Q

Flexor digitorum longus nerve supply

A

Tibial nerve L5S12

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43
Q

Extensor digitorum longus origin and insertion

A

Lateral Condyle Tibia
Upper 2/3rds of ant. surface of fibula
Interosseous Membrane

Middle & Distal Phalanges of Lateral Four Digits

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44
Q

Extensor digitorum longus action

A

Dorsiflexes interphalangeal, metatarsophalangeal and ankle joints

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45
Q

Extensor digitorum longus nerve supply

A

Deep peroneal L5S1

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46
Q

Extensor hallucis longus origin and insertion

A

Middle Part Anterior Surface Fibula
Interosseous Membrane

Dorsal Aspect of Base Distal
Phalanx of Big Toe

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47
Q

Extensor hallucis longus action

A

Dorsiflexes joints of hallux and the ankle

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48
Q

Extensor hallucis longus nerve supply

A

Deep peroneal L5S1

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49
Q

Rhomboid major origin and insertion

A

Spinous process of T2-T5 vertebrae

Medial border of scapula inferior to spina scapulae

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50
Q

Rhomboid major action

A

Retract, medially rotate and stabilise scapula

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51
Q

Rhomboid major nerve supply

A

Dorsal scapular C5

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52
Q

Rhomboid minor origin and insertion

A

Spinous process of C7-T1 vertebrae

Medial border of scapula superior to spina scapulae

53
Q

Rhomboid minor action

A

Retract, medially rotate and stabilise scapula

54
Q

Rhomboid minor nerve supply

A

Dorsal scapular C5

55
Q

Serratus anterior origin and insertion

A

Upper 8/9 ribs outer surface & intercostal fascia

costal surface, medial border of scapula

56
Q

Serratus anterior action

A

Protract and laterally rotate scapula

57
Q

Serratus anterior nerve supply

A

Long thoracic C567

58
Q

Upper trapezius origin and insertion

A

Medial third of the superior nuchal line, external occipital protuberance, nuchal ligament

Lateral third of clavicle

59
Q

Upper trapezius action

A

Elevates & laterally rotates pectoral girdle
Extends & laterally flexes the neck

60
Q

Upper trapezius nerve supply

A

Spinal accessory nerve xi

61
Q

Lower trapezius origin and insertion

A

Spinous processes and supraspinous ligaments of vertebrae T4-T12

lateral apex of the medial end of scapular spine

62
Q

Lower trapezius action

A

Elevates & laterally rotates pectoral girdle
Extends & laterally flexes the neck
Depress scapula

63
Q

Lower trapezius nerve supply

A

Spinal accessory nerve xi

64
Q

Middle trapezius nerve supply

A

Spinal accessory nerve xi

65
Q

Middle trapezius action

A

Retracts, elevates & laterally rotates pectoral girdle
Extends & laterally flexes the neck

66
Q

Middle trapezius origin and insertion

A

Spinous processes and supraspinous ligaments of vertebrae c7-t4

Medial acromial margin, superior crest of spine of scapula

67
Q

Pectoralis major origin and insertion

A

Medial half of the anterior border of the clavicle, anterior surface of the sternum, anterior surface of the upper 6 costal cartilages and the 6th rib.

Laminated tendon into lateral lip intertubercular groove

68
Q

Pectoralis major action

A

Flexes, medially rotates and adducts arm @ the shoulder

Sternocostal fibres extend the flexed arm

69
Q

Pectoralis major nerve supply

A

Medial pectoral nerve: C8, T1
Lateral pectoral nerve: C5, C6, C7

70
Q

Biceps brachii origin and insertion

A

Long head: supraglenoid tubercle of the scapula
Short head: apex of coracoid process

Bellies fuse at posterior part of radial tuberosity and the deep fascia of the forearm via the bicipital aponeurosis

71
Q

Biceps brachii action

A

Flex elbow and shoulder
Supinate wrist

72
Q

Biceps brachii nerve supply

A

Musculocutaneous C56

73
Q

Latissimus dorsi origin and insertion

A

Spinous processes of T7 – L5 vertebrae
Iliac crest of sacrum.
Thoracolumbar fascia.
Inferior angle of the scapula.
Lower three or four ribs.

Floor of intertubercular (bicipital) groove of humerus.

74
Q

Latissimus Dorsi action

A

Adducts, medially rotates & extends the arm @ the shoulder

75
Q

Latissimus dorsi nerve supply

A

Thoracodorsal nerve: C6 C7 C8

76
Q

Teres major origin and insertion

A

Lower 1/4 of lat. border & dorsal surface of inferior angle of scapula

Medial lip of intertubercular groove on humerus

77
Q

Teres major action

A

Adducts, medially rotates the arm @ the shoulder

78
Q

Teres major nerve supply

A

Lower subscapular C67

79
Q

Supraspinatus origin and insertion

A

Supraspinous fossa of the scapula

Superior aspect of the greater tubercle of the humerus

80
Q

Supraspinatus action

A

Initiate abduction @ shoulder

81
Q

Supraspinatus nerve supply

A

Suprascapular C56

82
Q

Subscapularis origin and insertion

A

Medial 2/3rds of subscapular fossa on scapula

Lesser tubercle of humerus

83
Q

Subscapularis action

A

Medially rotates arm @ shoulder

84
Q

Subscapularis nerve supply

A

Upper & lower subscapular nerve C5, C6, C7

85
Q

Infraspinatus origin and insertion

A

Medial 2/3rds of infraspinous fossa of scapula

Inferior facet of greater tubercle on humerus

86
Q

Infraspinatus action

A

Laterally rotates arm @ shoulder

87
Q

Infraspinatus nerve supply

A

Suprascapular nerve C56

88
Q

Brachioradialis origin and insertion

A

Upper 2/3rds of lat. supracondylar ridge of humerus
lat. intermuscular septum

Lat. surface of radius above styloid process

89
Q

Brachioradialis action

A

Elbow flexion in mid position of forearm

90
Q

Brachioradialis nerve supply

A

Radial C56

91
Q

Triceps brachii origin and insertion

A

Lateral: above spiral groove on posterior surface of humerus
long: infraglenoid tubercle of scapula
Medial: below spiral groove on med. aspect of posterior surface of humerus

Posterior part of olecranon and adjacent deep fascia of forearm

92
Q

Triceps brachii action

A

Elbow extension
Long head extends flexed humerus and adducts

93
Q

Triceps nerve supply

A

Radial C678

94
Q

Flexor carpi radialis origin and insertion

A

Common flexor origin- humerus medial epicondyle

2nd & 3rd metacarpals palmar surface

95
Q

Flexor carpi radialis action

A

Flexion and radial deviation

96
Q

Flexor carpi radialis nerve supply

A

Median nerve: C6, C7

97
Q

Flexor carpi ulnaris origin and insertion

A

Common flexor origin - medial epicondyle of humerus

Hook of hamate
Base of 5th metacarpal

98
Q

Flexor carpi ulnaris action

A

Wrist flexion and ulnar deviation

99
Q

Flexor carpi ulnaris nerve supply

A

Ulnar nerve c78

100
Q

Palmaris longus origin and insertion

A

Common flexor origin - medial epicondyle of humerus

Flexor retinaculum
Palmar aponeurosis

101
Q

Palmaris longus action

A

Flexes wrist

102
Q

Palmaris longus nerve supply

A

Median c8

103
Q

Extensor carpi radialis longus origin and insertion

A

Lower 1/3rd lateral supracondylar ridge of humerus and adjacent intermuscular septum.

Post. surface base of 2nd metacarpal

104
Q

Extensor carpi radialis longus action

A

Extend wrist and radial deviation

105
Q

Extensor carpi radialis longus nerve supply

A

Radial C67

106
Q

Extensor carpi radialis brevis origin and insertion

A

Lat. epicondyle of humerus via common extensor tendon

Post. surface base of 3rd metacarpal

107
Q

Extensor carpi radialis brevis action

A

Extends and radially deviates wrist

108
Q

Extensor carpi radialis brevis nerve supply

A

Posterior interosseous branch of radial nerve: C6, C7

109
Q

Extensor digitorum origin and insertion

A

Lat. epicondyle of humerus via common extensor tendon

Dorsal digital expansion to base of post. surface of distal & middle phalanges of fingers

110
Q

Extensor digitorum action

A

Extends in turn: distal interphalangeal, proximal interphalangeal, metacarpophalangeal and wrist joints.

111
Q

Extensor digitorum nerve supply

A

Posterior interosseous branch of radial nerve: C7, C8.

112
Q

Extensor carpi ulnaris origin and insertion

A

Lateral epicondyle of humerus via common extensor tendon via aponeurosis to post. border of ulna

Med. side base of 5th metacarpal

113
Q

Extensor carpi ulnaris action

A

Extends and ulnar deviates the wrist

114
Q

Extensor carpi ulnaris nerve supply

A

Posterior interosseous branch of radial nerve: C7, C8.

115
Q

Extensor pollicis longus origin and insertion

A

Middle 1/3 posterior surface of ulna and adjacent interosseous membrane

Dorsal surface base of distal phalanx of thumb

116
Q

Extensor pollicis longus action

A

Extends all thumb joints, extends and abducts the wrist.

117
Q

Extensor pollicis longus nerve supply

A

Posterior interosseous branch of radial nerve: C7, C8.

118
Q

Abductor pollicis longus origin and insertion

A

Upper post. surface of ulna, middle 1/3 of posterior surface of radius & interosseous membrane

Radial side of the base of the first metacarpal

119
Q

Abductor pollicis longus action

A

Abducts the thumb

120
Q

Abductor pollicis longus nerve supply

A

Posterior interosseous branch of radial nerve: C7, C8.

121
Q

Rectus abdominus origin and insertion

A

Symphysis pubis
pubic crest

Xiphoid process
costal cartilages of 5th, 6th, & 7th ribs

122
Q

Rectus abdominus action

A

Flexes the trunk

123
Q

Rectus abdominus nerve supply

A

Lower 6 or 7 thoracic nerves

124
Q

External oblique origin and insertion

A

Outer borders of lower 8 ribs & their costal cartilages

Outer lip of ant. 2/3rds of iliac crest - forms and aponeurosis that fuses with the one form the other side @ linear alba
inguinal ligament: lower free border between ant. sup. iliac spine & pubic tubercle

125
Q

External oblique action

A

Trunk flexion & lateral flexion
Trunk rotation

126
Q

External oblique nerve supply

A

Lower 6 or 7 thoracic and 1st lumbar nerves.

127
Q

Sternocleidomastoid origin and insertion

A

Manubrium sterni ant. surface
upper surface of medial 1/3 of clavicle

Temporal bone mastoid process
superior nuchal line of occipital bone

128
Q

Sternocleidomastoid action

A

Flexes and laterally flexes neck
Rotates head

129
Q

Sternocleidomastoid nerve supply

A

Accessory nerve.

1216- Anatomy, Biomechanics And Movement (12 decks)

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