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Spinal Anatomy -- Morter > Spinal Final Exam: Section X. cont--Suboccipital M., Accessory M., A&L Deep C M., Post. Abd. M., & Select Thorax M > Flashcards

Spinal Final Exam: Section X. cont--Suboccipital M., Accessory M., A&L Deep C M., Post. Abd. M., & Select Thorax M Flashcards

1
Q

What muscles are included in the suboccipital muscle group?

A

rectus capitis posterior major, rectus capitis posterior minor, obliquus capitis inferior, and obliquus capitis superior

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2
Q

Which suboccipital muscle lacks an attachment to the skull?

A

obliquus capitis inferior

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3
Q

Which nerve will innervate all suboccipital muscles?

A

the dorsal ramus of C1, the suboccipital nerve

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4
Q

What is the origin of the rectus capitis posterior major?

A

the spinous tubercle of C2

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5
Q

What is the insertion of the rectus capitis posterior minor?

A

inferior nuchal line laterally

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6
Q

Contraction of rectus capitis posterior major will result in what movements?

A

turns the face to the side, bilaterally acts to extend the head

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7
Q

What is the origin of the rectus capitis posterior minor?

A

the posterior tubercle of the posterior arch of C1

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8
Q

What is the insertion of the rectus capitis posterior minor?

A

inferior nuchal line medially

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9
Q

Contraction of rectus capitis posterior minor will result in what movement?

A

extends the head

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10
Q

What is the origin of the obliquus capitis inferior?

A

C2 spinous process and lamina

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11
Q

What is the insertion of the obliquus capitis inferior?

A

transverse process of C1

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12
Q

Contraction of obliquus capitis inferior will result in what movement?

A

turns the face to the side

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13
Q

What is the origin of the obliquus capitis superior?

A

the posterior tubercle of the transverse process of C1

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14
Q

What is the insertion of the obliquus capitis superior?

A

between superior nuchal line and inferior nuchal line

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15
Q

Contraction of obliquus capitis superior will result in what movements?

A

lateral flexion/lateral bending of the head, bilaterally acts to extend the head

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16
Q

An increase in the density of muscle spindles is most apparent in which suboccipital muscle?

A

obliquus capitis inferior

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17
Q

Suboccipital muscle feedback relays to what additional locations in the brain?

A

extraocular nuclei of origin, primary visual cortex, and vestibular nuclei

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18
Q

What is the result of communication between suboccipital muscles, visual centers, and vestibular centers?

A

coordination of head and eye position

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19
Q

What is the proposed function of the suboccipital muscle group?

A

postural stabilizers of the atlanto-occipital and atlanto-axial joints

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20
Q

Which suboccipital muscles are known to attach to dura mater?

A

rectus capitis posterior major, rectus capitis posterior minor and, obliquus capitis inferior

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21
Q

Interspinalis is paired in which regions of the spine?

A

cervical and lumbar regions

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22
Q

At what locations will interspinalis be absent along the spine?

A

T3-T4 down to T10-T11

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23
Q

Based on the density of muscle spindles what is the proposed function of the interspinalis?

A

acts as a proprioceptive transducer in conjunction with intertrasnversarii to coordinate the smooth movement of the spine and to maintain appropriate posture

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24
Q

Intertransversarii are paired in which region(s) of the spine?

A

cervical and lumbar regions

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25
Q

In which region of the spine are intertrasnversarii best developed?

A

cervical region

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26
Q

Which of the cervical intertransversarii is innerated by dorsal rami of cervical spinal nerves?

A

posterior medial belly, cervical intertransversarii

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27
Q

What is the origin of the medial belly of the lumbar intertransversarii?

A

accessory process of transverse process L1-L4

mammillary process of superior articular process L1-L4

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28
Q

What is the insertion of the medial belly of the lumbar intertransversarii?

A

mammillary process of superior articular process the segment below (L2-L5)

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29
Q

Which of the lumbar intertransversarii is innervated by dorsal rami of lumbar spinal nerves?

A

medial belly, lumbar intertransversarii

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30
Q

Which of the lumbar intertransversarii is innervated by ventral rami of lumbar spinal nerves?

A

anterior laterally belly and posterior lateral belly, lumbar intertransversarii

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31
Q

Which muscle group is innervated by both dorsal rami and ventral rami of spinal nerves?

A

intertransversarii

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32
Q

Based on the density of muscle spindles what is the proposed function of intertransversarii?

A

acts as a proprioceptive transducer in conjunction with interspinalis to coordinate the smooth movement of the spine and to maintain appropriate posture

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33
Q

What is the origin of the longus colli?

A

vertebral bodies of C5-C7, T1-T3, and anterior tubercles of transverse processes C3-C5

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34
Q

What is the insertion of the longus colli?

A

anterior tubercle of the anterior arch C1, vertebral bodies of C2-C4, and anterior tubercles of transverse processes C5-C6

35
Q

Contraction of longus colli will result in what movements?

A

flexion and lateral flexion (bending) of the neck and rotation to the contralateral side

36
Q

What will innervate the longus colli?

A

ventral rami of C2-C6 or C7 spinal nerves

37
Q

What is the origin of the longus capitis?

A

anterior tubercles of transverse processes C3-C6

38
Q

What is the insertion of the longus capitis?

A

basilar part of the occipital bone

39
Q

What will innervate the longus capitis?

A

the ventral rami of C1-C3 spinal nerves

40
Q

What is the origin of the rectus capitis anterior?

A

lateral mass and costal element of the transverse process of C1

41
Q

What is the insertion of the rectus capitis anterior?

A

basilar part of the occipital bone

42
Q

What will innervate the rectus capitis anterior?

A

ventral rami of C1-C2 spinal nerves

43
Q

What is the origin of the rectus capitis lateralis?

A

costal element of the transverse process of C1

44
Q

What is the insertion of the rectus capitis lateralis?

A

jugular process of the occipital bone

45
Q

What will innervate the rectus capitis lateralis?

A

the ventral rami of C1-C2 spinal nerves

46
Q

What is the origin of the anterior scalene?

A

anterior tubercle of transverse processes of C3-C6

47
Q

What is the insertion of the anterior scalene?

A

ridge and anterior scalene tubercle of the first rib

48
Q

Contraction of anterior scalene will result in what movements?

A

flexion and lateral flexion (bending) of the neck and rotation of cervicals to the contralateral side; elevates first rib

49
Q

What will innervate the anterior scalene?

A

the ventral rami of C2-C6 spinal nerves

50
Q

What is the origin of the middle scalene?

A

transverse processes of C1, C2 and

posterior tubercles of transverse processes C3-C7

51
Q

What is the insertion of the middle scalene?

A

between the tubercle and groove for the subclavian artery on the first rib

52
Q

Contraction of middle scalene will result in what movements?

A

laterally flex the neck; elevate the first rib

53
Q

What will innervate the middle scalene?

A

the ventral rami of C3-C8 spinal nerves

54
Q

What is the origin of the posterior scalene?

A

posterior tubercles of transverse processes C4-C6

55
Q

What is the insertion of the posterior scalene?

A

outer surface of second rib

56
Q

Contraction of posterior scalene will result in what movements?

A

laterally flex the neck; elevates the second rib

57
Q

What will innervate the posterior scalene?

A

the ventral rami of C6-C8 spinal nerves

58
Q

Which muscle is said to form the iliolumbar ligament?

A

quadratus lumborum

59
Q

What osseous part of the vertebral column serves as an origin to the quadratus lumborum?

A

transverse process of L5

60
Q

What is the insertion of the quadratus lumborum?

A

transverse tubercles of the transverse process L1-L4 and 12th rib

61
Q

What will innervate the quadratus lumborum?

A

the ventral rami of T12 and L1-L3 or L4 spinal nerves

62
Q

What is the origin of the psoas major?

A

vertebral bodies T12, L1-L5, S1 and transverse processes of L1-L5

63
Q

What is the insertion of the psoas major?

A

lesser trochanter of the femur

64
Q

What will innervate the psoas major?

A

primarily the ventral rami of L2 and L3, may include ventral rami of L1 and L4 spinal nerves

65
Q

What is the origin of the psoas minor?

A

vertebral bodies T12, L1

66
Q

What is the insertion of the psoas minor?

A

iliopubic eminence of the innominate bone?

67
Q

What will innervate the psoas minor?

A

the ventral ramus of L1 spinal nerve

68
Q

What osseous part of the vertebral column serves as an origin to the iliacus?

A

superolateral margin of sacrum

69
Q

What non-vertebral column site serves as an origin to the iliacus?

A

iliac crest and upper two-thirds of the iliac fossa of the innominate bone

70
Q

What is the insertion of the iliacus?

A

lesser trochanter of the femur

71
Q

What will innervate the iliacus?

A

the femoral nerve, primarily the ventral rami of L2 and L3

72
Q

What is the origin of the levator costarum brevis?

A

transverse tubercles of transverse processes from C7, T1-T11

73
Q

What is the insertion of the levator costarum brevis?

A

between the costal tubercle and costal angle of the rib below

74
Q

What will innervate the levator costarum brevis?

A

the dorsal rami of T1-T12 spinal nerves

75
Q

What is the origin of the levator costarum longus?

A

transverse tubercles of transverse processes from T7-T10

76
Q

What is the insertion of the levator costarum longus?

A

near costal angle of rib 9 - rib 12

77
Q

What will innervate the levator costarum longus?

A

the dorsal rami of the lower thoracic spinal nerves

78
Q

What is the origin of the serratus posterior superior?

A

spinous tubercles of spinous processes from C7, T1 and T2, possibly T3

79
Q

What is the insertion of the serratus posterior superior?

A

upper outer border of rib 2 - rib 5

80
Q

What will innervate the serratus posterior superior?

A

the ventral rami of T2 - T5 spinal nerves… intercostal nerves

81
Q

What is the origin of the serratus posterior inferior?

A

spinous tubercles of spinous processes from T11, T12, L1, and L2, possible L3

82
Q

What is the insertion of the serratus posterior inferior?

A

inferior outer border of ribs 9-12

83
Q

What will innervate the serratus posterior inferior?

A

the ventral rami of T9 -T11, the intercostal nerves and

the ventral ramus of T12, the subcostal

Spinal Anatomy -- Morter (21 decks)

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