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gross > Anterior Scalene > Flashcards

Anterior Scalene Flashcards

0
Q

Insertion of anterior scalene

A

1st rib

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1
Q

Origin of Anterior scalene

A

Transverse processes of C3-C6

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2
Q

Innervation of anterior scalene

A

Cervical spinal nerves C4-C6

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3
Q

Action of anterior scalene

A

Flexes neck laterally and elevates 1st rib during forced inspiration

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4
Q

Origin of latissimus dorsi

A

Spinous process of last 6 thoracic vertebra, thoracolumbar fascia, iliac crest, inferior 3 or 4 ribs

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5
Q

Insertion of latissimus dorsi

A

Inter tubercle groove of humerus

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6
Q

Innervation of latissimus dorsi

A

Thoracodorsal nerve C6,C7,C8

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7
Q

Action of latissimus dorsi

A

Elevates, adducts, medically rotates shoulder joint; raises body towards arm during climbing

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8
Q

Origin of trapezius

A

Nuchal ligament, medial Nuchal line, EOP, spinous processes of C7-T12

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9
Q

Insertion of trapezius

A

Spine of scapula, acromion, lateral 3rd of clavical

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10
Q

Innervation of trapezius

A

Spinal accessory nerve CN11 and C3, C4 spinal nerves

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11
Q

Action of trapezius

A

Descending fibers: elevate scapula
Middle: retracts scapula
Ascending: depresses scapula
A+D: rotAte glenoid cavity superiorly

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12
Q

Origin of rhomboid major

A

Spinous processes of t2-t5

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13
Q

Origin of rhomboid minor

A

Nuchal ligament C7-T1

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14
Q

Insertion of rhomboid major

A

Medial border inferior to spine of scapula

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15
Q

Insertion of rhomboid minor

A

Medial end of scapular spine

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16
Q

Innervation of rhomboid

A

Dorsal scapular C4 and C5

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17
Q

Action of rhomboids

A

Retracts scapula and depresses glenoid cavity, fix scapula of thoracic wall

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18
Q

Origin of levator scapulae

A

Posterior tubercles of transverse processes of C1-C4

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19
Q

Insertion of levator scapulae

A

Medial border of the scapula superior to the spine

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20
Q

Innervation of levator scapulae

A

Dorsal scapular C5 and cervical C3 and 4

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21
Q

Action of levator scapulae

A

Elevates the scapula and tilts glenoid cavity inferiorly

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22
Q

Origin of splenius capitis and splenius cervicis

A

Nuchal ligament and spinous processes of C7-T6

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23
Q

Insertion of splenius capitis

A

Mastoid process and superior Nuchal line

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24
Q

Insertion of splenius cervicis

A

Tubercles of transverse processes C1-C4

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25
Q

Innervation of splenius capitis and cervicis

A

Posterior rami of spinal nerves

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26
Q

Action of splenius capitis

A

Unilateral: Rotates head to one side and laterally flex
Bilateral: extend head and neck

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27
Q

Origin of spinalis

A

Broad tendon of iliac crest, posterior part of iliac crest, supraspinous ligament, sacro-iliac ligament, spinous processes of lumbar and sacral vertebra

28
Q

Insertion of spinalis

A

Fibers run superiorly to spinous processes in upper thoracic region and to cranium

29
Q

Innervation of spinalis

A

Posterior rami of spinal nerves

30
Q

Action of spinalis

A

Bilaterally: extend vertebral column and head
UniLaterally: laterally flex vertebral column

31
Q

Origin if longissimus

A

Broad tendon of iliac crest, sacro-iliac ligament, suprspinous ligament, posterior part of iliac crest, posterior surface of sacrum, spinous processes of lumbar and sacral vertebrae

32
Q

Insertion of longissimus

A

Fibers run superiorly to ribs between tubecles and angles to transverse processes in thoracic and cervical regions and to mastoid of temporal bone

33
Q

Innervationof longissimus

A

Posterior rami of spinal nerves

34
Q

Action of longissimus

A

Bilaterally: extend head And vertebral column
Unilaterally: laterally flex vertebral column

35
Q

Origin of iliocostalis

A

Broad tendon of iliac crest, posterior part of iliac crest, sacro-iliac ligament, posterior surface of sacrum, supraspinous ligament, spinous processes of lumbar and sarcral vertebrae

36
Q

Insertion of iliocostalis

A

Fibers run superiorly to angles of lower ribs and cervical transverse processes

37
Q

Innervation of iliocostalis

A

Posterior rami of spinal nerves

38
Q

Action of iliocostalis

A

Bilaterally: extends head and vertebral column
Unilaterally: laterally flexes vertebral column

39
Q

Origin of semispinalis capitis

A

Transverse processes of C4-T10

40
Q

Insertion of semispinalis capitis

A

Occipital bone, spinous processes in upper thoracis and cervical regions, spans 4-6 segments

41
Q

Innervation of semispinalis capitis

A

Posterior rami of spinal nerves

42
Q

Action of semispinalis capitis

A

Extends head and thoracic and cervical regions of vertebral column and rotates the contralaterally

43
Q

Origin of multifidus

A

Posterior sacrum, superior iliac spine, aponeruosis of erector spinae, sacro-iliac ligament, mammilarry processes of lumbar vert., transverse processes of thoracic vertebrae, articular processes of C4-C7

44
Q

Insertion of multifidus

A

Fibers pass obliquely superior medially to spinous processes of vertebrae 2-4 segments superior to origin

45
Q

Action of multifidus

A

Contralateral rotation and stabilizes during local movement of vertebral column

46
Q

Origin of rotatores

A

Transverse processes of vertebrae

47
Q

Insertion of rotatores

A

Fibers pass superior medially to attach to junction of lamina and transverse processes/ spinous processes of vertebrae immediately or two segments superior to vertebrae origin

48
Q

Action of rotatores

A

Organs of proprioception, maybe stabilize vertebrae and assist with extension and rotation

49
Q

Origin of rectus capitis posterior minor

A

Posterior tubercle of posterior arch of C1

50
Q

Insertion of rectus capitis posterior minor

A

Medial inferior Nuchal line

51
Q

Innervation of rectus capitis posterior minor

A

Posterior rami of C1 suboccipital nerve

52
Q

Action of rectus capitis posterior minor

A

Unilaterally: rotates head to one side
Bilaterally: extends head

53
Q

Origin of rectus capitis posterior major

A

Spinous process of C2

54
Q

Insertion of rectus capitis posterior major

A

Lateral part of inferior nuchal line

55
Q

Innervation of rectus capitis posterior major

A

Posterior rami of C1 suboccipital nerve

56
Q

Action of rectus capitis posterior major

A

Unilaterally: rotates head to one side
Bilaterally: extends head

57
Q

Origin if obliqus capitis inferior

A

Spinous process of C2

58
Q

Insertion of obliquus capitis inferior

A

Transverse processes of C1

59
Q

Innervation of obliquus capitis inferior

A

Posterior rami of C1

60
Q

Action of obliquus capitis inferior

A

Unilaterally: tilts head to one side and controlateral rotation
Bilaterally: extends head

61
Q

Origin of obliquus capitis superior

A

Transverse process of C1

62
Q

Insertion of obliquus capitis superior

A

In between inferior and superior nuchal lines

63
Q

Innervation of obliquus capitis superior

A

Posterior rami of C1 subocciptial nerve

64
Q

Action of obliquus capitis superior

A

Unilaterally: tilts head to one side and contralateral roation
Bilaterally: extends head

65
Q

Origin of SCM

A

Anterior surface of manubrium of sternum

Superior surface of medial third of clavical

66
Q

Insertion if SCM

A

Lateral surface of mastoid process and leteral half of superior nuchal line

67
Q

Action of SCM

A

Unilaterally: tilts head to same side and contralateral rotation
Bilaterally: extends neck at atlanto-occitpial joint, flexes cervical vertebrae, extends superior cervical verrtebrae while flexing inferior vertebrae
May elevate clavical in deep breathing

68
Q

Innervation of SCM

A

Cranial nerve 11, c2 and c3

gross (13 decks)

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