Muscles -Shoulder And Trunk

Front 1

Origin of eye muscles

Back 1

Orbit

Front 2

Insertion of eye musclea

Back 2

eyeball

Front 3

action of superior rectus

Back 3

elevation of eye

Front 4

action of superior oblique

Back 4

depression of eye
medial rotation of eye

Front 5

action of lateral rectus

Back 5

abduction of eye

Front 6

action of inferior oblique

Back 6

lateral rotation of eye
elevation of adducted eye

Front 7

action of inferior rectus

Back 7

depression of eye

Front 8

action of medial rectus

Back 8

adduction of eye

Front 9

innervation of eye muscles

Back 9

SO4 LR6 others3
(superior oblique cn IV trochlear, lateral rectus CN VI abducens, all others CN III oculomotor )

Front 10

Origin of temporalis

Back 10

lateral surface of temporal bone

Front 11

Insertion of temporalis

Back 11

Mandible

Front 12

Action of temporalis

Back 12

Closes and retracts jaw

Front 13

Innervation of temporalis

Back 13

Trigeminal n (CN V)

Front 14

Origin of Masseter

Back 14

Zygomatic arch

Front 15

Insertion of Masseter

Back 15

Mandible

Front 16

Action of Masseter

Back 16

Closes jaw
assist- protraction of jaw

Front 17

Innervation of Masseter

Back 17

Trigeminal n (CN V)

Front 18

Origin of Medial Pterygoid

Back 18

Medial surface of pterygoid plate

Front 19

Insertion of Medial pterygoid

Back 19

Mandible

Front 20

Action of Medial Pterygoid

Back 20

Closes jaw
unilaterally - lateral deviation of mandible to opposite side

Front 21

Innervation of Medial Pterygoid

Back 21

Trigeminal n (CN V)

Front 22

Origin of Lateral Pterygoid

Back 22

lateral surface of pterygoid plate

Front 23

Insertion of lateral pterygoid

Back 23

mandible
TMJ capsule

Front 24

Action of Lateral Pterygoid

Back 24

Protracts jaw and unilaterally- lateral deviation of mandible to opposite side

Front 25

Innervation of lateral pterygoid

Back 25

Trigeminal n (CN V)

Front 26

Origin of Sternocleidomastoid

Back 26

sternal head- manubrium of sternum
Clavicular head- medial clavicle

Front 27

Insertion of Sternocleidomastoid

Back 27

Mastoid process of temporal bone

Front 28

Action of Sternocleidomastoid

Back 28

Bilaterally- Extension of head and flexion of neck
Unilaterally- Lateral flexion of head and neck to same side; rotation of head and neck to opposite side

Front 29

Innervation of sternocleidomastoid

Back 29

accessory n (CN XI)
C2-3 spinal ns

Front 30

Origin of scalenes

Back 30

Transverse process of:
Anterior- C3-6
Middle- C2-7
Posterior- C4-6

Front 31

Insertion of scalenes

Back 31

Ribs:
Anterior- 1st rib
Middle- 1st rib
Posterior- 1st and 2nd rib

Front 32

Action of scalenes

Back 32

Anterior- flexion of head
Middle- lateral flexion of neck, elevation of 1st rib in forced inspiration
Posterior- Lateral flexion of neck, elevates 2nd rib during forced inspiration

Front 33

innervation of scalenes

Back 33

C3-8 spinal ns

Front 34

Origin of splenius capitis

Back 34

Ligamentum nuchae
C7, T1-3 spinous process

Front 35

Insertion of splenius capitis

Back 35

Mastoid process of temporal bone
Superior nuchal line of occipital bone

Front 36

Origin of spenius cervicus

Back 36

T3-6 vertebrae

Front 37

Insertion of spenius cervicus

Back 37

C1-3 vertebrae- transverse process

Front 38

Action of splenius capitis and splenius cervicus

Back 38

Bilaterally- extension of head and neck
unilaterally- lateral flexion of head and neck; rotation of head and neck to same side

Front 39

Innervation of splenius capitis and splenius cervicus

Back 39

C1-6 spinal ns- dorsal rami

Front 40

Origin of rectus abdominis

Back 40

pubic symphysis
pubic crest

Front 41

Insertion of rectus abdominis

Back 41

ribs 5,6,7
Xiphoid process

Front 42

Action of rectus abdominis

Back 42

flexion of trunk
compression and support of abdominal viscera

Front 43

Innervation of rectus abdominis

Back 43

Thoracoabdominal ns (T7-11)

Front 44

Origin of external oblique

Back 44

Lower 8 ribs

Front 45

Insertion of external oblique

Back 45

Linea alba
Pubis
Anterior Iliac crest

Front 46

Action of external oblique

Back 46

Bilaterally- Flexion of trunk and compression and support of abdominal viscera
Unilaterally- lateral flexion of trunk and rotation of trunk to opposite side

Front 47

Origin of internal oblique

Back 47

Inguinal ligament
Anterior Iliac Crest
Thoracolumbar aponeurosis

Front 48

Insertion of internal oblique

Back 48

Lower 4 ribs
Abdominal aponeurosis
Linea Alba

Front 49

Action of internal oblique

Back 49

Bilaterally- flexion of trunk, compression and support of abdominal viscera
Unilaterally- lateral flexion of trunk, rotation of trunk to same side

Front 50

Innervation of internal oblique

Back 50

Thoracoabdominal ns (T7-12, L1)

Front 51

Innervation of external oblique

Back 51

thoracoabdominal ns (T7-11)
Subcostal n (T12)

Front 52

Origin of transverse abdominis

Back 52

Inguinal ligament
Iliac crest
Thoracolumbar aponeurosis
Ribs 7-12

Front 53

Insertion of transverse abdominis

Back 53

Abdominal aponeurosis
Linea Alba
Pubis

Front 54

Action of transverse abdominis

Back 54

Compression and support of abdominal viscera

Front 55

innervation of transverse abdominis

Back 55

thoracoabdominal ns (T7-12, L1)

Front 56

Origin of intercostals

Back 56

between adjacent ribs

Front 57

Insertion of intercostals

Back 57

between adjacent ribs

Front 58

Action of intercostals

Back 58

elevation of ribs in inspiration

Front 59

Innervation of intercostals

Back 59

intercostal ns- thoracic spinal ns, ventral rami

Front 60

Origin of diaphragm

Back 60

first 3 lumbar vertebra
lower 6 costal cartilages
Xiphoid process of sternum

Front 61

Insertion of diaphragm

Back 61

central tendon

Front 62

action of diaphragm

Back 62

flattening of central tendon

Front 63

Innervation of diaphragm

Back 63

phrenic n (C3-5)

Front 64

Origin of serratus posterior superior

Back 64

Ligamentum nuchae
Spinous process of C7-T3

Front 65

Insertion of serratus posterior superior

Back 65

Superior border of ribs 2-5

Front 66

Action of serratus posterior superior

Back 66

elevation of ribs to increase thoracic cavity during inspiration

Front 67

Innervation of serratus posterior superior

Back 67

Intercostal ns T1-4

Front 68

Origin of serratus posterior inferior

Back 68

T11-L3 vertebrae- spinous process

Front 69

Insertion of serratus posterior inferior

Back 69

Inferior border of ribs 8-12

Front 70

Action of serratus posterior inferior

Back 70

depression of ribs outward counteracting the inward pull of the diaphragm during expiration

Front 71

Innervation of serratus posterior inferior

Back 71

intercostal ns T9-12

Front 72

Origin of levatores costarum

Back 72

C7-T11 vertebrae- tip of transverse process

Front 73

Insertion of levatores costarum

Back 73

brevis- rib immediately inferior to origin
Longus- 2nd rib inferior to origin

Front 74

Action of levatores costarum

Back 74

Elevation of ribs in inspiration

Front 75

Innervation of levatores costarum

Back 75

thoracic spinal ns - posterior rami

Front 76

Origin of Quadratus Lumborum

Back 76

Iliac crest of Ilium

Front 77

Insertion of Quadratus Lumborum

Back 77

inferior margin of 12th rib
transverse process of L1-4

Front 78

Action of Quadratus Lumborum

Back 78

stabilization of 12th rib in inspiration
Unilaterally: lateral flexion of trunk to same side, elevation of pelvis to same side if thorax and vertebral column are stabilized

Front 79

Innervation of Quadratus Lumborum

Back 79

T12, L1-4 spinal ns- ventral rami

Front 80

Origin of erector spinae

Back 80

Thoracolumbar fascia
Iliac crest of Ilium
Posterior Sacrum
Sacral ligaments
Spinous process of lumbar vertebrae

Front 81

Action of erector spinae

Back 81

Bilaterally- extension of spine
Unilaterally- Lateral flexion of spine to same side

Front 82

Innervation of erector spinae

Back 82

spinal nerves- dorsal rami

Front 83

Insertion of Ilicostals

Back 83

Lower ribs
Transverse process of cervical vertebrae

Front 84

Insertion of longissimus

Back 84

ribs 3-12
transverse process of thoracic and cervical vertebrae
Mastoid process of temporal bone

Front 85

Insertion of Spinalis

Back 85

Spinous process of thoracic and cervical vertebrae
occipital bone

Front 86

Origin of semispinalis

Back 86

C3-T11 vertebrae- transverse process

Front 87

Insertion of semispinalis

Back 87

Occipital bone

Front 88

Action of semispinalis

Back 88

Bilaterally- extension of spine
Unilaterally- rotation of spine to opposite side

Front 89

Innervation of semispinalis

Back 89

Spinal nerves- dorsal rami

Front 90

Origin of multifidus

Back 90

C4-7 vertebrae- articular processes
T1-3 vertebrae- transverse process
Mammillary process of lumbar vertebrae
Posterior sacrum
PSIS of Ilium
Sacroiliac ligaments
Thoracolumbar aponeurosis

Front 91

Insertion of multifidus

Back 91

spinous process of all vertebrae

Front 92

Action of multifidus

Back 92

stabilization of vertebral column

Front 93

Innervation of multifidus

Back 93

spinal nerves- dorsal rami

Front 94

Origin of rotatores

Back 94

transverse process of all vertebrae

Front 95

Insertion of rotatores

Back 95

spinous process of all vertebrae

Front 96

Action of rotatores

Back 96

Bilaterally- assists extension of spine
Unilaterally- assists in rotation of spine to opposite side

Front 97

Innervation of rotatores

Back 97

spinal nerves- dorsal rami

Front 98

Origin of interspinales

Back 98

Spinous process of cervical, lumbar, amd T1-2, T11-12

Front 99

Insertion of interspinales

Back 99

spinous process of vertebrae directly superior to origin

Front 100

Action of interspinales

Back 100

Assists in extension of spine

Front 101

Innervation of interspinales

Back 101

spinal nerves- dorsal rami

Front 102

Origin of intertransversarii

Back 102

transverse process of cervical and lumbar vertebrae

Front 103

Insertion of intertransversarii

Back 103

transverse process of Vertebrae directly superior to origin

Front 104

Action of intertransversarii

Back 104

assists lateral extension of spine
Stabilization of spine

Front 105

Innervation of intertransversarii

Back 105

Spinal nerves- dorsal rami
cervical spinal ns- ventral rami

Front 106

Origin of trapezius

Back 106

Upper- external occipital protuberance and ligamentum nuchae
Middle- C7-T12 Spinous process
Lower- T4-T12 Spinous process

Front 107

Insertion of trapezius

Back 107

Upper- lateral third of clavicle and acromion of scapula
Middle- spine of scapula
Lower- root of spine of scapula

Front 108

Action of trapezius

Back 108

Upper- elevation and lateral rotation of scapula
Middle- Adduction of scapula
Lower- Depression and lateral rotation of scapula

Front 109

Innervation of trapezius

Back 109

Accessory n (CN XI)
C3,4 spinal ns

Front 110

Origin of levator scapula

Back 110

transverse process of C1-4

Front 111

insertion of levator scapula

Back 111

vertebral border of scapula

Front 112

Action of levator scapula

Back 112

elevation
medial rotation of scapula

Front 113

Innervation of levator scapula

Back 113

dorsal scapular n (C5)
C3,4 spinal ns

Front 114

Origin of rhomboids

Back 114

minor- spinous process of C7-T1
major- spinous process of T2-5

Front 115

insertion of rhomboids

Back 115

minor- root of spine of scapula
major- vertebral border of scapula

Front 116

Action of rhomboids

Back 116

adduction and medial rotation of scapula

Front 117

Innervation of rhomboids

Back 117

dorsal scapular n (C4,5)

Front 118

Origin of latissimus dorsi

Back 118

thoracolumbar aponeurosis
lower 6 thoracic spinous process
Sacrum
iliac crest of Ilium
Lower 3 to 4 ribs
Inferior angle of scapula

Front 119

Insertion of latissimus dorsi

Back 119

bicipital groove of humerus

Front 120

Action of latissimus dorsi

Back 120

extension, medial rotation, and adduction of humerus
medial rotation of scapula
Assists depression of scapula

Front 121

Innervation of latissimus dorsi

Back 121

thoracodorsal n (C6,7,8)

Front 122

origin of supraspinatus

Back 122

Supraspinous fossa of scapula

Front 123

insertion of supraspinatus

Back 123

greater tubercle of humerus

Front 124

Action of supraspinatus

Back 124

abduction
scaption of humerus
stabilization of head of humerus

Front 125

Innervation of supraspinatus

Back 125

suprascapular n (c4,5,6)

Front 126

Origin of infraspinatus

Back 126

infraspinous fossa of scapula

Front 127

insertion of infraspinatus

Back 127

greater tubercle of humerus

Front 128

action of infraspinatus

Back 128

lateral rotation and extension of humerus

Front 129

Innervation of infraspinatus

Back 129

suprascapular n (c5,6)

Front 130

Origin of teres minor

Back 130

upper 2/3 of axillary border of scapula

Front 131

insertion of teres minor

Back 131

greater tubercle of humerus

Front 132

action of teres minor

Back 132

lateral rotation and extension of humerus

Front 133

innervation of teres minor

Back 133

Axillary n (C5,6)

Front 134

Origin of subscapularis

Back 134

subscapular fossa of scapula

Front 135

insertion of subscapularis

Back 135

lesser tubercle of humerus

Front 136

action of subscapularis

Back 136

medial rotation and adduction of humerus

Front 137

innervation of subscapularis

Back 137

upper and lower subscapular ns (C5,6,7)

Front 138

Origin of teres major

Back 138

inferior angle of scapula
lower third of axillary border of scapula

Front 139

Insertion of teres major

Back 139

medial lip of bicipital groove of humerus

Front 140

Action of teres major

Back 140

extension, medial rotation, and adduction of humerus

Front 141

Innervation of teres major

Back 141

lower subscapular n (C5,6)

Front 142

origin of serratus anterior

Back 142

lateral surface of upper 8 ribs

Front 143

insertion of serratus anterior

Back 143

vertebral border of scapula

Front 144

Action of serratus anterior

Back 144

abduction
lateral rotation of scapula
stabilizes scapula against chest wall
depression of scapula
assists- forced exhalation

Front 145

innervation of serratus anterior

Back 145

long thoracic n (C5,6,7)

Front 146

origin of pectoralis minor

Back 146

anterior surface of ribs 3,4,5

Front 147

Insertion of pectoralis minor

Back 147

coracoid process of scapula

Front 148

Action of pectoralis minor

Back 148

Abduction
Depression
Meidal rotation
Anterior tilt of scapula
assists- forced inhalation

Front 149

innervation of pectoralis minor

Back 149

medial pectoral n (C8, T1)

Front 150

Origin of pectoralis major

Back 150

clavicular- medial half of clavicle
sternocostal- sternum, cartilages of superior 6 ribs, aponeurosis of external oblique muscles

Front 151

insertion of pectoralis major

Back 151

lateral lip of bicipital groove of humerus

Front 152

action of pectoralis major

Back 152

adduction
horizontal adduction
medial rotation of humerus
clavicular- flexion of humerus
sternocostal- extensionof humerus, assists anterior tilt of scapula

Front 153

innervation of pectoralis major

Back 153

clavicular- lateral and medial pectoral ns (C5,6)
Sternocostal- medial pectoral n (C7,8, T1)

Front 154

Origin of deltoids

Back 154

Anterior- lateral third of clavicle
middle- acromion of scapula
posterior- spine of scapula

Front 155

insertion of deltoids

Back 155

deltoid tuberosity of humerus

Front 156

action of deltoids

Back 156

anterior- flexion, horizontal adduction, and medial rotation of humerus
middle- abduction of humerus to 90 degrees
posterior- extension, horizontal abduction, lateral rotation, and scaption of humerus

Front 157

Innervation of deltoids

Back 157

axillary n (C5,6)

Front 158

Origin of biceps brachii

Back 158

short- coracoid process of scapula
long- supraglenoid tubercle of scapula

Front 159

insertion of biceps brachii

Back 159

tuberosity of radius
bicipital aponeurosis

Front 160

action of biceps brachii

Back 160

flexion of elbow
supination of forearm
short - flexion of humerus

Front 161

innervation of biceps brachii

Back 161

musculocutaneous n (C5,6)

Front 162

Origin of triceps brachii

Back 162

long- infraglenoid tubercle of scapula
lateral- posterior humerus
medial- posterior humerus

Front 163

insertion of triceps brachii

Back 163

olecranon process of ulna

Front 164

action of triceps brachii

Back 164

extension of elbow
long- extension of humerus

Front 165

innervation of triceps brachii

Back 165

radial n (C6,7,8)

Front 166

Origin of anconeus

Back 166

lateral epicondyle of humerus

Front 167

insertion of anconeus

Back 167

olecranon process and upper posterior surface of ulna

Front 168

action of anconeus

Back 168

assists extension of elbow

Front 169

innervation of anconeus

Back 169

radial n (C7,8, T1)

Front 170

Origin of brachialis

Back 170

lower half of anterior shaft of humerus

Front 171

Insertion of brachialis

Back 171

tuberosity of ulna
coronoid process of ulna

Front 172

Action of brachialis

Back 172

flexion of elbow

Front 173

innervation of brachialis

Back 173

musculocutaneous n (C5,6)

Front 174

origin of brachioradialis

Back 174

lateral supracondylar ridge of humerus

Front 175

insertion of brachioradialis

Back 175

styloid process of radius

Front 176

action of brachioradialis

Back 176

flexion of elbow with forearm in mid-position

Front 177

innervation of brachioradialis

Back 177

radial n (C5,6,7)

Front 178

origin of coracobrachialis

Back 178

coracoid process of scapula

Front 179

insertion of coracobrachialis

Back 179

middle 1/3 of medial surface of humeral shaft

Front 180

action of coracobrachialis

Back 180

flexion and adduction of humerus

Front 181

innervation of coracobrachialis

Back 181

musculocutaneous n (C5,6,7)