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IMSK Exam 1 > Muscles, Vessels and Nerves of Deep Back and Suboccipital Region > Flashcards

Muscles, Vessels and Nerves of Deep Back and Suboccipital Region Flashcards

1
Q

What is the origin of serratus posterior superior?

A

Nuchal ligament, spinous processes of C7 to T3

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2
Q

What is the insertion of serratus posterior superior?

A

Superior borders of ribs 2 to 4

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3
Q

What nerve innervates serratus posterior superior?

A

Intercostal nerves 2-5

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4
Q

What is the action of serratus posterior superior?

A

Proprioception; elevate ribs

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5
Q

What is the origin of serratus posterior inferior?

A

Spinous processes T11 to L2

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6
Q

What is the insertion of serratus posterior inferior?

A

Inferior borders of ribs 8-12

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7
Q

What nerve innervates serratus posterior inferior?

A

Anterior rami T9-T12

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8
Q

What is the action of serratus posterior inferior?

A

Proprioception; depress ribs

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9
Q

What is the origin of splenius capitis and cervicis?

A

Nuchal ligament and spinous processes C7-T6

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10
Q

What is the insertion of splenius capitis?

A

Mastoid process and lateral 1/3 inferior nuchal line

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11
Q

What is the insertion of splenius cervicis?

A

Transverse process C1-C3 or C4

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12
Q

What innervates splenius capitis and cervicis?

A

Posterior rami of spinal nerves

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13
Q

What is the action of splenius capitis or cervicis when working alone (ipsilateral)?

A

Lateral flexion of head; rotation of head to side of active muscles

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14
Q

What is the action of splenius capitis or cervicis when working together (contralateral)?

A

Extension of the head and neck

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15
Q

What are the three muscles of the erector spinae muscle group from lateral to medial?

A

Iliocostalis, longissimus, spinalis

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16
Q

What is the origin of the erector spinae muscle group?

A

Broad tendon from posterior iliac crest, posterior sacrum, sacrum-iliac ligaments, sacral and inferior lumbar spinous processes, and Supraspinous ligament

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17
Q

What nerve innervates the erector spinae muscle group?

A

Posterior rami of spinal nerves

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18
Q

What is the bilateral action of erector spinae muscle group?

A

Extend column and head

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19
Q

What is the unilateral action of erector spinae muscle group?

A

Lateral flexion of column

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20
Q

What are the three parts of the iliocostalis?

A

Lumborum, thoracis, cervicis

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21
Q

What is the insertion of the iliocostalis?

A

Angles of lower ribs and cervical transverse processes

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22
Q

What are the three parts of the longissimus?

A

Thoracis, cervicis, capitis

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23
Q

What is the insertion of longissimus?

A

Ribs between tubercles and angles, transverse processes in thoracic and cervical regions, mastoid process

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24
Q

What are the three parts of spinalis?

A

Thoracis, cervicis, capitis

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25
Q

What is the insertion of spinalis?

A

Spinous processes in upper thoracic region to cranium

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26
Q

What is the origin of the transversospinae muscle group?

A

Transverse processes

27
Q

What is the insertion of the transversospinae muscle group?

A

Spinous processes

28
Q

What innervates the transversospinae muscle group?

A

Posterior rami of spinal nerves

29
Q

What is the action of the transversospinae muscle group?

A

Extension

30
Q

What are the three parts of the transversospinae muscle group?

A

Semispinalis, multifidus, rotatares

31
Q

What are the three parts of the Semispinalis?

A

Thoracis, cervicis, capitis

32
Q

What is the origin of Semispinalis?

A

C4-T12

33
Q

What is the insertion of Semispinalis?

A

Occipital bone (capitis), spinous processes

34
Q

What is the action of Semispinalis?

A

Extends the head and thoracic and cervical regions

35
Q

What is the origin of the multifidus?

A

Post sacrum and pelvis, C2-L5 transverse processes

36
Q

What is the action of multifidus?

A

Stabilization of the vertebrae during column movement

37
Q

What is the action of rotatores?

A

Stabilize vertebrae during column movements

38
Q

What are the two types of rotatores muscle?

A

Longus and brevis

39
Q

What is the insertion of longus rotatores?

A

2 vertebral segments up from the rib it originates from

40
Q

What is the insertion of brevis rotatores?

A

1 vertebral segment up from the rib it originates from

41
Q

What is the origin of levator costarum muscles?

A

Transverse processes C7-T11

42
Q

What is the insertion of levator costarum muscles?

A

Subjacent ribs between tubercle and angle

43
Q

What innervates levator costarum muscles?

A

Posterior rami C8-T11

44
Q

What is the action of levator costarum muscles?

A

Elevate the ribs in respiration; Lateral flexion of vertebral column

45
Q

What is the origin of rectus capitis posterior major?

A

Spinous process of axis

46
Q

What is the insertion of rectus capitis posterior major?

A

Inferior nuchal line (lateral)

47
Q

What innervates rectus capitis posterior major?

A

Suboccipital nerve

48
Q

What is the action of rectus capitis posterior major?

A

Extension; ipsilateral rotation; action at Atlanto occipital and Atlanto axial joints

49
Q

What is the origin of rectus capitis posterior minor?

A

Posterior arch tubercle of atlas

50
Q

What is the insertion of rectus capitis posterior minor?

A

Inferior nuchal line (medial)

51
Q

What innervates rectus capitis posterior minor?

A

Suboccipital nerve

52
Q

What is the action of rectus capitis posterior minor?

A

Extension at the Atlanto-occipital joint

53
Q

What is the origin of superior obliquus capitis?

A

Transverse process of the atlas

54
Q

What is the insertion of superior obliquus capitis?

A

Between superior and inferior nuchal lines

55
Q

What innervates the superior obliquus capitis?

A

Suboccipital nerve

56
Q

What is the action of the superior obliquus capitis?

A

Extension at the Atlanto-occipital joint

57
Q

What is the origin of the inferior obliquus capitis?

A

Spinous process of the axis

58
Q

What is the insertion of the inferior obliquus capitis?

A

Transverse process of the atlas

59
Q

What innervates the inferior obliquus capitis?

A

Suboccipital nerve

60
Q

What is the action of the inferior obliquus capitis?

A

Ipsilateral rotation at the Atlanto-axial joint

61
Q

What are the superior/lateral boundaries of the suboccipital triangle?

A

Superior obliquus capitis

62
Q

What are the superior medial boundaries of the suboccipital triangle?

A

Rectus capitis posterior major

63
Q

What is the inferior/lateral boundary of the suboccipital triangle?

A

Inferior obliquus capitis

64
Q

What forms the roof of the suboccipital triangle?

A

Semispinalis capitis

IMSK Exam 1 (15 decks)

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