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Spinal Final Exam Questions > 9/29 Questions > Flashcards

9/29 Questions Flashcards

1
Q

What is the classic origin of rotator brevis or its homolog?

A

transverse processes from C3 and each lower vertebra to the dorsal surface of sacrum (C3-C7, T1-T12, L1-L5, sacrum)

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2
Q

What is the classic origin of rotator longus or its homolog?

A

transverse processes from C4 and each lower vertebra to the dorsal surface of sacrum

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3
Q

What innervates the rotators?

A

dorsal rami at the level of insertion are believed to do so

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4
Q

Which suboccipital muscle lacks an attachment to the skull?

A

obliquus capitis inferior

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5
Q

Which nerve will innervate all suboccipital muscles?

A

the dorsal ramus of C1, the suboccipital nerve

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6
Q

What is the origin of the rectus capitis posterior major?

A

the spinous tubercle of C2

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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 origin of the obliquus capitis inferior?

A

C2 spinous process and lamina

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9
Q

What is the insertion of the obliquus capitis inferior?

A

transverse process of C1

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10
Q

What is the origin of the obliquus capitis superior?

A

the posterior tubercle of the transverse process of C1

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11
Q

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

A

obliquus capitis inferior

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12
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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13
Q

What is the proposed function of the suboccipital muscle group?

A

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

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14
Q

Which suboccipital muscles are known to attach to dura mater?

A

rectus capitis posterior major
rectus capitis posterior minor
obliquus capitis inferior

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15
Q

Interspinalis is paired in which regions of the spine?

A

cervical and lumbar regions

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16
Q

At what locations will interspinalis be absent along the spine?

A

T3-T4 down to T10-T11

17
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 intertransversarii to coordinate the smooth movement of the spine and to maintain appropriate posture

18
Q

Which of the cervical intertransversarii is innervated by dorsi rami of cervical spinal nerves?

A

posterior medial belly

cervical intertransversarii

19
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

20
Q

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

A

medial belly, lumbar intertransversarii

21
Q

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

A

intertransversarii

22
Q

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

A

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

23
Q

What is the origin of the longus colli?

A

vertebral bodies of C5-C6, T1-T3 and anterior tubercles of transverse processes C3-C5

24
Q

What will innervate the longus colli?

A

ventral rami of C2-C6 or C7 spinal nerves

25
Q

What will innervate the longus capitis?

A

the ventral rami of C1-C3 spinal nerves

26
Q

What is the origin of the rectus capitis anterior?

A

lateral mass and costal element of the transverse process of C1

27
Q

What will innervate the rectus capitis anterior?

A

ventral rami of C1-C2 spinal nerves

28
Q

What will innervate the rectus capitis lateralis?

A

the ventral rami of C1-C2 spinal nerves

29
Q

What is the insertion of the anterior scalene?

A

ridge and anterior scalene tubercle of the first rib

30
Q

What will innervate the anterior scalene?

A

the ventral rami of C2-C6 spinal nerves

31
Q

What is the insertion of the middle scalene?

A

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

32
Q

What will innervate the middle scalene?

A

the ventral rami of C3-C8 spinal nerves

33
Q

What is the insertion of the posterior scalene?

A

outer surface of second rib

34
Q

What will innervate the posterior scalene?

A

the ventral rami of C6-C8 spinal nerves

35
Q

Rotator muscles are typically identified in what region of the spine?

A

the thoracic region

Spinal Final Exam Questions (15 decks)

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