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Gross Anatomy > Back OINA(B) > Flashcards

Back OINA(B) Flashcards

1
Q

trapezius orgin

A

Superior nuchal line, external occipital protuberance, C1-C6 via ligamnetum nuchae, C7-T12 spinous process

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2
Q

trapezius insertion

A

spine of scapula, lateral third of clavicle, and acrominion process

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3
Q

trapezius action

A

superior fibers: elevate scapula and clavicle, middle fibers: retract and adduct scapula, inferior fibers: depress scapula and clavicle

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4
Q

trapezius nerve

A

spinal accessory nerve

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5
Q

trapezius blood supply

A

transverse cervical artery

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6
Q

latissimus dorsi orgin

A

Spinous process of T7-T12, L1-L5, sacrum, and posterior iliac crest via thoracolumbar fascia

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7
Q

latissimus dorsi insertion

A

floor of the bicipital groove of the humerus

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8
Q

latissimus dorsi action

A

extends, medially rotates, and adducts arm

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9
Q

latissimus dorsi innervation

A

thoracodorsal nerve

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10
Q

latissimus dorsi blood supply

A

thoracodorsal artery

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11
Q

levator scapulae orgin

A

C1-C4 transverse processes

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12
Q

levator scapulae insertion

A

superior border of scapula

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13
Q

levator scapulae action

A

elevates scapula, depresses lateral angle, helps pull scapula medially and superiorly, bend/flex the neck laterally and rotate to same side as acting muscle

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14
Q

levator scapulae nerve

A

dorsal scapular nerve

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15
Q

rhomboid major orgin

A

T2-T5 spinous processes

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16
Q

rhomboid major insertion

A

medial border of scapula

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17
Q

rhomboid major action

A

retracts the scapula, slightly elevates the scapula, and posteriorly rotates the scapula towards humerus

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18
Q

rhomboid major innervation

A

dorsal scapular nerve

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19
Q

rhomboid major blood supply

A

dorsal scapular artery

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20
Q

rhomboid minor orgin

A

C7-T1 spinous processes

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21
Q

rhomboid minor insertion

A

medial border of scapula

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22
Q

rhomboid minor action

A

retracts/adducts scapula, elevates, and roates scapula to direct the glenoid cavity inferiorly

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23
Q

rhomboid minor nerve

A

dorsal scapular nerve

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24
Q

serratus posterior superior orgin

A

Ligamentum nuchae, spinous processes of seventh cervical and first few thoracic vertebrae.

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25
Q

serratus posterior superior insertion

A

Superior borders of ribs 2-5, medial to their angles.

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26
Q

serratus posterior superior action

A

Assists in elevating/raising ribs in inspiration (slightly increasing the
diameter of thorax)

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27
Q

serratus posterior superior nerve

A

Ventral rami of first few thoracic nerves (T1-T4 intercostal nerves)

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28
Q

serratus posterior inferior orgin

A

Spinous processes of T11-T12 and L1-L3

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29
Q

serratus posterior inferior insertion

A

Inferior borders of ribs 9-12 near their angles.

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30
Q

serratus posterior inferior action

A

Pulls ribs slightly inferiorly, resisting the pull of the diaphragm
(preventing them from being pulled superiorly by the diaphragm);
depression of the ribs during forced expiration

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31
Q

serratus posterior inferior nerve

A

Ventral rami of last few thoracic nerves

32
Q

Iliocostalis orgin

A

angles of ribs: 1-12

33
Q

Iliocostalis cervicis insertion

A

Transverse processes of C4-C6

34
Q

iliocostalis thoracics insertion

A

Angles of ribs 1-6 and transverse process of C7

35
Q

iliocostalis lumborum insertion

A

Angles of ribs 7-12.

36
Q

Iliocostalis cervicis action

A

Extension, lateral flexion of vertebral column

37
Q

iliocostalis thoracic action

A

Extension, lateral flexion of vertebral column, rotates ribs
for forceful inspiration

38
Q

iliocostalis lumborum action

A

Extension, lateral flexion of vertebral column, rotates ribs
for forceful inspiration.

39
Q

Iliocostalis nerve

A

dorsal rami of spinal nerves

40
Q

longissimus cervicis orgin

A

Transverse processes of T1-T5

41
Q

longissimus thoracis orgin

A

Medial and lateral sacral crests, spinous processes of T11-
L5.

42
Q

longissimuss capitis insertion

A

Posterior part of mastoid process of temporal bone

43
Q

logissimus cervicis insertion

A

Transverse processes of C2-C6

44
Q

longissimus thoracis insertion

A

Transverse processes of all thoracic vertebrae, and medial
aspects of most ribs (3-12).

45
Q

longissimus capitis action

A

Extends and laterally flexes neck/head.

46
Q

longissimus cervicis action

A

Extension, lateral flexion of vertebral column

47
Q

longissimus thoracis action

A

Extension, lateral flexion of vertebral column, rotates ribs
for forceful inspiration

48
Q

longissimus nerve

A

dorsal rami of spinal nerves

49
Q

spinalis thoracis orgin

A

Spinous processes of T11-L2.

50
Q

spinalis thoracis insertion

A

spinous process of T1-T8

51
Q

spinalis action

A

Extends, laterally flexes and stabilizes vertebral column

52
Q

spinalis nerve

A

dorsal rami of spinal nerves

53
Q

rotatores orgin and insertion

A
  • Span 1 or 2 vertebral segments
54
Q

rotatores action

A

stabilize, extend (bilaterally) and rotate (contralaterally)
vertebral column

55
Q

rotatores nerve

A

dorsal rami of spinal nerves

56
Q

interspinales orgin and insertion

A

Paired on either side of the interspinous ligament,
unite spinous processes of adjacent vertebrae

57
Q

interspinales action

A

Act to stabilize and
extend the vertebral column

58
Q

interspinales nerve

A

dorsal rami of spinal nerves

59
Q

intertransversarii orgin/insertion

A
  • Unite transverse processes of adjacent vertebrae.
60
Q

intertransversarii action

A

Unilaterally can produce slight lateral flexion of the vertebrae,
bilaterally help stabilize vertebral column

61
Q

intertransversarii nerve

A

mostly innervated by ventral rami of cervical spine nerves but some are supplied by dorsal rami

62
Q

semispinalis capitis orgin

A

Transverse processes of C4-C7 and T1-T7

63
Q

semispinalis capitis insertion

A

Between superior and inferior nuchal lines of occipital bone

64
Q

semispinalis capitis action

A

Extends neck/head and rotates head to opposite side

65
Q

semispinalis nerve

A

dorsal rami of spinal nerves

66
Q

semispinalis cervicis and thoracis action

A

extends and stabilizes vertebral column

67
Q

multifdus orgin and insertion

A

Span 2 to 4 (“about 3”) vertebral segments

68
Q

multifidus action

A

e stabilize, extend (bilaterally) and rotate (contralaterally) the
vertebral column

69
Q

multifidus nerve

A

dorsal rami of spinal nerves

70
Q

splenius capitis orgin

A

Inferior part of ligamentum nuchae, spinous processes of C7 and
T1-T4.

71
Q

splenius capitis insertion

A

Mastoid process of the temporal bone and lateral part of the
superior nuchal line

72
Q

splenius capitis action

A

Acting together (right and left) extend the neck/head, one side
acting alone will laterally flex and rotate head and neck ipsilateral (to
the same side as acting muscle)

73
Q

splenius capitis nerve

A

Dorsal rami of spinal nerves

74
Q

splenius cervicis orgin

A

Spinous processes of T3-T6

75
Q

splenius cervicis insertion

A

Transverse processes of C1-C3

76
Q

splenius cervicis action

A

Acting together (right and left) extend the neck, one side acting
alone will laterally flex and rotate neck; the head will follow
(ipsilateral)

77
Q

splenius cervicis nerve

A

Dorsal rami of spinal nerves

Gross Anatomy (9 decks)

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