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Spinal Anatomy II > Lab 1 - Innervations and Actions > Flashcards

Lab 1 - Innervations and Actions Flashcards

1
Q

Innervation of trapezius?

A

spinal accessory nerve, C1-C5 cord levels

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2
Q

Innervation of latissimus dorsi?

A

thoracodorsal nerve, ventral rami C6-C8

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3
Q

Innervation of levator scapulae?

A

dorsal scapular nerve, ventral ramus C5 plus ventral rami C3, C4

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4
Q

Innervation of rhomboid major?

A

dorsal scapular nerve, ventral ramus C5 plus ventral rami C4

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5
Q

Innervation of rhomboid minor?

A

dorsal scapular nerve, ventral ramus C5 plus ventral ramus C4

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6
Q

Innervation of splenius capitis?

A

dorsal rami C3-C5

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7
Q

Action of splenius capitis?

A
  • laterally flex head and rotate face to side

- bilaterally extend head

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8
Q

Innervation of splenius cervicis?

A

dorsal rami C5-C7

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9
Q

Action of splenius cervicis?

A
  • laterally flex and rotate neck

- bilaterally extend neck

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10
Q

Innervation of iliocostalis lumborum?

A

dorsal rami lower T, all L

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11
Q

Action of iliocostalis lumborum?

A
  • extension, lateral flexion, rotation of L spine

- lateral movement of pelvis

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12
Q

Innervation of iliocostalis thoracis?

A

dorsal rami T1-T6

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13
Q

Action of iliocostalis thoracis?

A
  • extension

- lateral flexion T spine

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14
Q

Innervation of iliocostalis cervicis?

A

dorsal rami T1, T2; rarely C8

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15
Q

Action of iliocostalis cervicis?

A
  • extenion
  • lateral flexion
  • rotation lower C spine
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16
Q

Innervation longissimus thoracis?

A

dorsal rami T and L nerves

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17
Q

Action of longissimus thoracis?

A
  • lateral flexion T spine and ribs (L spine inadvertently)
  • bilaterally act in extension of T and L spine
  • hold T and L spine erect (increases L lordosis)
  • lateral movement of pelvis
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18
Q

Innervation of longissimus cervicis?

A

dorsal rami C4-C8; T1-T2

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19
Q

Action of longissimus cervicis?

A
  • lateral flexion of neck

- bilaterally extend

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20
Q

Innervation of longissimus capitis?

A

dorsal rami C1-C3, sometimes C4

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21
Q

Action of longissimus capitis?

A
  • rotate and laterally flex head

- bilaterally extend head

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22
Q

Innervation of spinalis thoracis?

A

dorsal rami T and upper L

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23
Q

Action of spinalis thoracis?

A

extend T spine

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24
Q

Innervation of spinalis cervicis?

A

dorsal rami C

25
Q

Action of spinalis cervicis?

A
  • lateral flexion and rotation of C spine

- bilaterally extend neck

26
Q

Innervation of spinalis capitis?

A

dorsal rami lower C, upper T

27
Q

Action of spinalis capitis?

A
  • lateral flexion and rotation of head

- bilaterally extend head

28
Q

Innervation of semispinalis thoracis?

A

dorsal rami T1-T6

29
Q

Action semispinalis thoracis?

A
  • extension, rotation and lateral flexion of upper T and lower C
  • bilaterally extend T spine
30
Q

Innervation of semispinalis cervicis ?

A

dorsal rami C6-C8

31
Q

Action of semispinalis cervicis?

A
  • extension, rotation and lateral flexion of C spine

- bilaterally extend

32
Q

Innervation of semispinalis capitis?

A

dorsal rami C1-C6

33
Q

Action of semispinalis capitis?

A
  • turns face to side

- bilaterally extends head (neck inadvertently)

34
Q

Innervation of multifidus?

A

dorsal rami C3-C8, T1-T12, L1-L5, sometimes S1

35
Q

Innervation of rectus capitis posterior major?

A

suboccipital nerve, dorsal ramus C1

36
Q

Action of rectus capitis posterior major?

A
  • turns face to side

- bilaterally extends head

37
Q

Innervation of rectus capitis posterior minor?

A

suboccipital nerve, dorsal ramus C1

38
Q

Action of rectus capitis posterior minor?

A

extends head

39
Q

Innervation of obliquus capitis superior?

A

suboccipital nerve, dorsal ramus C1

40
Q

Action of obliquus capitis superior?

A
  • lateral flexion of head

- bilaterally extends head

41
Q

Innervation of obliquus capitis inferior?

A

suboccipital nerve, dorsal ramus C1

42
Q

Action of obliquus capitis inferior?

A

turns face to side

43
Q

Innervation of quadratus lumborum?

A

ventral rami T12, L1-L3 or L4

44
Q

Action of quadratus lumborum?

A
  • steadies origin of diaphragm
  • when pelvis is fixed, it will laterally flex the L spine
  • bilaterally extends the L spine
  • stabilizes and depresses the 12 rib
45
Q

Innervation of serratus posterior superior?

A

intercostal nerves, ventral rami T2-T5

46
Q

Action of serratus posterior superior?

A

elevate upper 5 ribs in inspiration

47
Q

Innervation of serratus posterior inferior?

A
  • intercostal nerves, ventral rami T9-T11

- subcostal nerve, ventral ramus T12

48
Q

Action of serratus posterior inferior?

A
  • draws lower 4 ribs down and back

- forced inspiration

49
Q

Innervation of longus colli?

A

ventral rami C2-C6, sometimes C7

50
Q

Action of longus colli?

A
  • flexion and extension of neck

- rotation to the contralateral side

51
Q

Innervation of longus capitis?

A

ventral rami C1-C3

52
Q

Action of longus capitis?

A

flex the head

53
Q

Innervation of rectus capitis anterior?

A

ventral rami C1, C2

54
Q

Action of rectus capitis anterior?

A

flex the head

55
Q

Innervation of rectus capitis lateralis?

A

ventral rami C1, C2

56
Q

Action of rectus capitis lateralis?

A

laterally flex the head to ipsilateral side

57
Q

Innervation of anterior scalene?

A

ventral rami C2-C6

58
Q

Innervation of middle scalene?

A

ventral rami C3-C8

59
Q

Innervation of posterior scalene?

A

ventral rami C6-C8

Spinal Anatomy II (9 decks)

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