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msk > superficial and deep back > Flashcards

superficial and deep back Flashcards

1
Q

movements of the scapula

A 
elevation
depression
adduction
abduction
upward rotation
downward rotation
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2
Q

movements of humerus (at glenohumeral joint)

A 
extension
flexion
abduction
adduction
lateral rotation 
medial rotation
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3
Q

functions of extrinsic back muscles

A

attaches appendicular to axial skeleton

attaches components of the axial skeleton

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4
Q

functions of the intrinsic back muscles

A

attaches to components of the axial skeleton

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5
Q

extrinsic group back muscles

A

superficial appendicular muscles

intermediate (respiratory group)

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6
Q

superficial appendicular muscles

A

1st layer superficial - trapezius and latissimus dorsi

2nd layer deep - rhomboids and levator scapulae

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7
Q

intermediate (respiratory) group muscles

A

serratus post superior

serratus post inferior

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8
Q

superficial muscles

A

splenius group

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9
Q

intermediate muscles

A

erect or spinae muscle group

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10
Q

deep muscles

A

transversospinales group

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11
Q

deepest muscles

A

interspinales group

intertrasversarri muscles

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12
Q

extrinsic back muscle/superficial back muscle rests

A

above/superficial to thoracolumbar fascia

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13
Q

innervation of extrinsic back muscle

A

ventral rami branches of brachial plexus

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14
Q

blood supply of extrinsic back muscle

A

branches of the subclavian and axillary artery

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15
Q

function of superficial appendicular muscles

A

connect axial skeleton to the appendicular skeleton

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16
Q

superficial appendicular muscles primarily move upper limb by

A

moving the scapula or the humerus

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17
Q

nerve supply of levator scapulae

A

c3, c4 spinal nerves and dorsal scapular nerve

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18
Q

artery supply of levator scapulae

A

branches of transverse cervical and ascending cervical artery

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19
Q

nerve supply of trapezius muscle

A

spinal accessory nerve (cranial nerve 10)

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20
Q

artery supply of trapezius muscle

A

superficial branch of transverse cervical artery

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21
Q

nerve supply of latissimus dorsi muscle

A

thoracodorsal nerve

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22
Q

artery supply of latissimus dorsi muscle

A

thoracodorsal artery

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23
Q

nerve supply of rhomboid minor/major muscle

A

dorsal scapular nerve

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24
Q

artery supply of rhomboid minor/major muscle

A

deep branch of transverse cervical or

dorsal scapular artery

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25
Q

superficial respiratory/intermediate extrinsic group muscles positioned

A

deep to the superficial appendicular group muscles but is still superficial to the thoracolumbar fascia

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26
Q

which muscles do not move humerus or scapula

A

deep intrinsic muscles/superficial respiratory/intermediate intrinsic group

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27
Q

deep intrinsic muscles serve more of

A

a sensory role than motor function

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28
Q

what muscles make up superficial respiratory group

A

serratus posterior superior

serratus posterior inferior

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29
Q

nerve supply of serratus posterior

A

ventral anterior rami of intercostal nerves

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30
Q

artery supply of serratus posterior

A

segmental arterial supply from intercostal arteries

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31
Q

function of trapezius

A

assists in rotation of scapular during abduction of humerus above horizontal

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32
Q

function of lat dorsi

A

extends, adducts, medially rotates humerus

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33
Q

function of levator scapulae

A

elevates scapula

34
Q

function of rhomboid major/minor

A

adducts and elevates scapula

35
Q

function of seratus posterior superior

A

elevates ribs 2 to 5

36
Q

function of serratus posterior inferior

A

depresses ribs 4 to 12

may prevent lower ribs from elevating when diaphragm contracts

37
Q

intrinsic back muscles rest

A

deep to the thoracolumbar fascia

38
Q

intrinsic back muscles involved in

A

movement of true back bones (vertebral column)

39
Q

nerve supply of intrinsic back muscles

A

dorsal rami of spinal nerves

40
Q

artery supply of intrinsic back muscles

A

branches of the aorta and vertebral arteries

41
Q

four groups of intrinsic back muscles

A

superficial muscles
intermedia muscles
deep muscles
deepest muscles

42
Q

what muscles make up superficial group

A

splenius muscles

43
Q

splenius capitis

A

attaches to bones of the neck

44
Q

splenius cervicis

A

attaches to bones associated with the skull

45
Q

bilateral contraction of superficial muscles leads to

A

to extension of the head, cervical, and upper thoracic vertebrae

46
Q

unilateral contraction of superficial muscles leads to

A

ipsilateral lateral flexion and rotation

47
Q

intermediate muscles are the main

A

extensors of the vertebral column and are divided into three columns

48
Q

three columns of intermediate muscles

A

iliocostalis muscle
longissimus muscle
spinalis muscle

49
Q

origin of intermediate muscle

A

common origin

broad tendon that attaches to the iliac crest, scarum, and inferior lumbar spinous processes

50
Q

bilateral contraction of intermediate muscle leads to

A

extension/straightening of the flexed trunk

51
Q

unilateral contraction of intermediate muscle leads to

A

ipsilateral lateral flexion

52
Q

deep muscles found

A

depp to erector spinae muscles

53
Q

deep muscles consists of three obliquely oriented muscles:

A

semispinalis
multifidus
rotatores

54
Q

semispinalis bilaterally contraction

A

extends the head and vertebral column

55
Q

semispinalis unilaterally contraction

A

causes contralateral rotation

56
Q

multifidus and rotatores provides

A

stability to the vertebral column

assist in local extension of the vertebral column

57
Q

unilateral contraction of multifidus and rotatores

A

causes contralateral rotation

58
Q

deepest muscles consists of

A

interspinales
intertransversarii
levator costarum

59
Q

interspinales and intertransversarii contains many

A 
muscle spindles (sensory appartus) 
imparting a proprioceptive role
60
Q

which muscles are postural muscles that stabilize the vertebrae

A

interspinales and intertransversarii

61
Q

lecator costarum helps

A

elevate ribs (respiratory function)

62
Q

importance of fascia

A

interconnects all structures of the body

contains collagen fibers arranged in sheets oriented in different directions

63
Q

functions of fascia

A

allows for the sliding of muscular structure and neurovascular structures between contractile fields and joints
reduces friction of muscular force
forms muscle compartments (which increase force and contraction for groups of muscles)

64
Q

injury of fascia can lead to

A

development of scar tissue which can impair muscle contraction

65
Q

fasciotomy

A

surgical procedure to cut fascia to relieve increasing pressure in msk compartments

66
Q

thoracolumbar fascia

A

deep investing membrane throughout most of the posterior thorax and abdomen

67
Q

thoracolumbar fascia formed by

A

longitudinal and transverse fibers from various muscles that bridge the aponeuroses of internal oblique and transversalis muscles

68
Q

thoracolumbar fascia is continuous with

A

deep fascia of the neck

69
Q

three layers of thoracolumbar fascia

A

anterior, middle, posterior

70
Q

anterior and middle layers of thoracolumbar fascia insert

A

at the transverse processes of vertebrae

71
Q

posterior layer of thoracolumbar fascia inserts

A

at the tips of the spinous processes

indirectly continuous with interspinous ligaments

72
Q

thoracolumbar fascia convers the

A

intrinsic muscles of the back

73
Q

lymph from skin of the back of the neck drains into

A

occipital, deep cervical, and axillary (posterior) nodes

74
Q

lymph from the skin of the back of the trunk drains into

A

axillary (posterior) nodes

some drain into the superficial inguinal nodes

75
Q

lymph from muscles of the back drains into

A

the paravertebral lymph nodes

76
Q

the skin of the back region is innervated by

A

dorsal rami of spinal nerves

77
Q

ventral rami will inverate

A

the lateral body wall via the lateral cutaneous nerve
and
the anterior body wall via the anterior cutaneous nerve

78
Q

triangle of asculation

A

landmark which allows for prime pulmonary auscultation

79
Q

boundaries of triangle of auscultation

A

inferior: superior boarder of lat dorsi
medial: lateral border of trapezius
lateral: medial border of scapula

80
Q

triangle of petit

A

inferior lumbar triangle

lumbar triangle

81
Q

boundaries of triangle of petit

A

inferior: iliac crest
posterior: lat dorsi
anterior: external oblique muscle
floor: internal oblique muscle and transversus abdominus muscle

82
Q

petit hernia

A

appears as a bulge in the lumbar region
can be bilateral
maybe acquired or congenital
rare type of hernia

msk (20 decks)

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