Cumulative OINAs

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splenius capitis - origin

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402 Terms

1

splenius capitis - origin

spines of C7 through T4 and the nuchal ligament

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2

splenius capitis - insertion

lateral 1/3 of superior nuchal line of occipital bone and mastoid process

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3

splenius capitis - nerve innervation

dorsal rami of inferior cervical nerves

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4

splenius capitis - action

unilaterally: rotate and laterally flex the head and neck to the same side

bilaterally: extend head and neck

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5

splenius cervicis - origin

spines of T3 through T6

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6

splenius cervicis - insertion

posterior tubercle of transverse processes of C1-C4

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7

splenius cervicis - nerve innervation

dorsal rami of inferior cervical nerves

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8

splenius cervicis - action

unilaterally: rotate and laterally flex the head and neck to the same side

bilaterally: extend head and neck

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9

iliocostalis lumborum - origin

iliac crest, posterior aspect of sacrum, the sacroiliac ligaments and the sacral and inferior lumbar spinous processes

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10

iliocostalis lumborum - insertion

the inferior borders of the lower 6 ribs

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11

iliocostalis lumborum - nerve innervation

dorsal rami

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12

iliocostalis lumborum - action

unilaterally: flex the vertebral column to the same side

bilaterally: extend the vertebral column

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13

iliocostalis thoracis - origin

superior borders of the lower 6 ribs

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14

iliocostalis thoracis - insertion

inferior borders of upper 6 ribs

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15

iliocostalis thoracis - nerve innervation

dorsal rami

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16

iliocostalis thoracis - action

unilaterally: flex the vertebral column to the same side

bilaterally: extend the vertebral column

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17

iliocostalis cervicis - origin

superior borders of upper 6 ribs

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18

iliocostalis cervicis - insertion

inferior borders of transverse processes of C4-6

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19

iliocostalis cervicis - nerve innervation

dorsal rami

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20

iliocostalis cervicis - action

unilaterally: flex the vertebral column to the same side

bilaterally: extend the vertebral column

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21

longissimus thoracis - origin

sacrum

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22

longissimus thoracis - insertion

inferior borders of transverse processes and ribs of lower 9-10 thoracic vertebrae

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23

longissimus thoracis - nerve innervation

dorsal rami

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24

longissimus thoracis - action

unilaterally: flex the vertebral column to the same side

bilaterally: extend the vertebral column

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25

longissimus cervicis - origin

superior borders of transverse processes of the upper 6 thoracic vertebrae

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26

longissimus cervicis - insertion

inferior borders of the transverse processes of the 2nd-6th cervical vertebrae

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27

longissimus cervicis - nerve innervation

dorsal rami

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28

longissimus cervicis - action

unilaterally: flex vertebral column to the same side

bilaterally: extend the vertebral column

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29

longissimus capitis - origin

superior borders of 2nd-6th cervical vertebrae

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30

longissimus capitis - insertion

mastoid process of the skull

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31

longissimus capitis - nerve innervation

dorsal rami

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32

longissimus capitis - action

unilaterally: flex vertebral column to the same side

bilaterally: extend the vertebral column

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33

spinalis thoracis - origin

between spinous processes of thoracic region

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34

spinalis thoracis - insertion

between spinous processes of thoracic region

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35

spinalis thoracis - nerve innervation

dorsal rami

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36

spinalis thoracis - action

unilaterally: flex the vertebral column to the same side

bilaterally: extend vertebral column

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37

spinalis cervicis - origin

inconsistently present

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38

spinalis cervicis - insertion

inconsistently present

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39

spinalis cervicis - nerve innervation

dorsal rami

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40

spinalis cervicis - action

unilaterally: flex the vertebral column to the same side

bilaterally: extend vertebral column

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41

spinalis capitis - origin

usually considered most medial portion semispinalis capitis muscle

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42

spinalis capitis - insertion

usually considered most medial portion semispinalis capitis muscle

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43

spinalis capitis - nerve innervation

dorsal rami

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44

spinalis capitis - action

unilaterally: flex the vertebral column to the same side

bilaterally: extend vertebral column

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45

semispinalis thoracis - origin

transverse processes of the lower 7 thoracic vertebrae (T6-T12)

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46

semispinalis thoracis - insertion

spines of the upper 4 thoracic vertebrae (T1-T4)

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47

semispinalis thoracis - nerve innervation

dorsal rami

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48

semispinalis thoracis - action

backward bending of head and cervicothoracic regions

contralateral rotation

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49

semispinalis cervicis - origin

transverse processes of the upper 6 thoracic vertebrae (T1-T6)

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50

semispinalis cervicis - insertion

spines of 2nd-5th cervical vertebrae

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51

semispinalis cervicis - nerve innervation

dorsal rami

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52

semispinalis cervicis - action

backward bending of head and cervicothoracic regions

contralateral rotation

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53

semispinalis capitis - origin

overlies the semispinalis cervicis and runs from the transverse processes of the 4th cervical vertebra through the 4th thoracic vertebrae (C4-T4)

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54

semispinalis capitis - insertion

inferior nuchal line of the skull

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55

semispinalis capitis - nerve innervation

dorsal rami

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56

semispinalis capitis - action

backward bending of head and cervicothoracic regions

controllateral rotation

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57

multifitdus (short fascicles) - origin

caudal end of dorsal surface of each vertebral lamina

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58

multifitdus (short fascicles) - insertion

mammillary processes of vertebrae that are 2 levels below

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59

multifitdus (short fascicles) - nerve innervation

medial branch of dorsal ramus of vertebra below

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60

multifitdus (short fascicles) - action

stabilizes spine during rotation and forward bending

protect facet capsules from being caught inside the joint

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61

multifitdus (large fascicles) - origin

base and caudolateral edge of the spinous processes

fascicles are arranged in 5 overlapping groups such that each lumbar vertebra gives rise of one of these groups

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62

multifitdus (large fascicles) - insertion

mammillary processes, iliac crest, sacrum

deep fibers attach to the capsules of the zygapophyseal joints next to mammillary processes

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63

multifitdus (large fascicles) - nerve innervation

medial branch of dorsal rami of vertebra below

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64

multifitdus (large fascicles) - action

stabilizes spine during rotation and forward bending

protect facet capsules from being caught inside the joint

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65

rectus capitis posterior major - origin

spine of axis

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66

rectus capitis posterior major - insertion

lateral part of inferior nuchal line of occipital bone

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67

rectus capitis posterior major - nerve innervation

suboccipital nerve

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68

rectus capitis posterior major - action

extension, lateral flexion, rotation of head

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69

rectus capitis posterior minor - origin

posterior tubercle of atlas

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70

rectus capitis posterior minor - insertion

occipital bone of inferior nuchal line

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71

rectus capitis posterior minor - nerve innervation

suboccipital nerve

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72

rectus capitis posterior minor - action

lateral flexion, extension of head

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73

obliquus capitis inferior - origin

spine of axis

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74

obliquus capitis inferior - insertion

transverse process of atlas

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75

obliquus capitis inferior - nerve innervation

1st and 2nd cervical nerves

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76

obliquus capitis inferior - action

rotates atlas and skull around ondontoid process of axis

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77

obliquus capitis superior - origin

transverse process of atlas

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78

obliquus capitis superior - insertion

occipital bone above inferior nuchal line

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79

obliquus capitis superior - nerve innervation

1st cervical nerve

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80

obliquus capitis superior - action

extension, lateral flexion of head

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81

platysma - origin

fascia and skin over pectoralis major and deltoid muscles

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82

platysma - insertion

inferior border of mandible and skin over lower face

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83

platysma - nerve innervation

cervical branch of facial nerve (CN VII)

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84

platysma - action

tenses skin of neck, draws corners of mouth down, assists in depressing mandible

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85

sternocleidomastoid - origin

sternal head: anterior surface of manubrium sterni
clavicular head: upper surface of medial 1/3 of clavicle

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86

sternocleidomastoid - insertion

mastoid process of temporal bone and lateral half of superior nuchal line of occipital bone

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87

sternocleidomastoid - nerve innervation

accessory (CN XI) and ventral ramus of second cervical nerve

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88

sternocleidomastoid - action

unilaterally: ipsilateral lateral flexion and contralateral rotation of head
bilaterally: neck flexion

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89

scalenus anterior - origin

anterior tubercles of transverse processes of cervical vertebrae 3-6

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90

scalenus anterior - insertion

internal border of first rib

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91

scalenus anterior - nerve innervation

ventral rami of cervical nerves

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92

scalenus anterior - action

flexes cervical column laterally and acts in respiration

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93

scalenus medius - origin

posterior tubercles of transverse processes of cervical vertebrae 2-7

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94

scalenus medius - insertion

superior border of first rib

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95

scalenus medius - nerve innervation

ventral rami of cervical nerves

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96

scalenus medius - action

flexes cervical column laterally and acts in respiration

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97

scalenus posterior - origin

posterior tubercles of transverse processes of cervical vertebrae 4-6

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98

scalenus posterior - insertion

external surface of second rib

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99

scalenus posterior - nerve innervation

ventral rami of cervical nerves

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100

scalenus posterior - action

flexes cervical column laterally and acts in respiration

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