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Positioning 1 > Ch. 5 Humerus and Shoulder Girdle > Flashcards

Ch. 5 Humerus and Shoulder Girdle Flashcards

1
Q

largest and longest bone of the upper limb

A

humerus

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2
Q

how much of the adult body height is about the length of the adult’s humerus

A

1/5

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3
Q

most proximal part of the humerus is the

A

head of the humerus

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4
Q

slightly constricted area directly below and lateral to the head of the humerus

A

anatomic neck

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5
Q

the process directly below the anatomic neck and on the anterior surface of the humerus

A

lesser tubercle

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6
Q

larger, lateral process on the humerus

A

greater tubercle

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7
Q

the deep groove located between the two tubercles on the humerus

A

intertubercular sulcus (bicipital groove)

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8
Q

tapered area below the head and tubercles of the humerus

A

surgical neck

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9
Q

distal to the surgical neck of the humerus

A

body (shaft)

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10
Q

roughened raised triangular elevation along the anterolateral surface of the body of the humerus

A

deltoid tuberosity

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11
Q

a neutral position of the arm places the humerus in what position

A

oblique position

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12
Q

what position puts the humerus in an AP position

A

external rotation, hand supinated, condyles parallel to IR

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13
Q

what position puts the humerus in a true lateral position

A

internal rotation, hand pronated, condyles perp to IR

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14
Q

what position puts the lesser tubercle in profile

A

internal rotation, lateral projection

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15
Q

what position puts the greater tubercle in profile

A

external rotation, AP projection

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16
Q

what bones make up the shoulder girdle

A

clavicle and scapula

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17
Q

special projection of should that best demonstrates the acromiohumeral space for possible subacromial spurs, which create shoulder impingement syndromes

A
  • neer method
  • apical AP axial projection
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18
Q

what type of kVp range for a single contrast study

A

100-120 kVp

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19
Q

what is CR for scapular/shoulder Y

A

scapulohumeral joint (2” below AC joint)

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20
Q

where is CR location for AP scapula projection

A

2” inferior to coracoid (axilla level) and 2” medial from transverse border

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21
Q

which projection of the shoulder puts the glenoid process in profile on the image produced

A

anterior oblique (grashey method)

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22
Q

to best demonstrate a possible Hill-sachs defect what additional positioning technique can be added to the inferosuperior axial (lawrence method) projection

A

rotate affected arm externally 45 degrees

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23
Q

where is CR for AP scapula

A

2” inferior to coracoid process (axilla level) and 2” medial from lateral border

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24
Q

how much CR angle would a hypersthenic patient need for an AP axial clavicle projection

A

15 degrees cephalad

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25
Q

an AP acial projection of the clavicle is angle how

A

15-30 degrees cephalad

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26
Q

how do you position a patient for an AP scapula

A

bend arm up and back of hand to forehead

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27
Q

where is CR for an AP projection of the shoulder

A

1” inferior to coracoid process

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28
Q

what is the anterior surface of the scapula called

A

costal surface

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29
Q

what is an excellent modality for demonstrating bony injuries and extent of fractures

A

computed tomography (CT)

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30
Q

large concavity/depression in the middle of the anterior surface of the scapula

A

subscapular fossa

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31
Q

if patient is unable to elevate uninjured arm and shoulder sufficiently for a transthoracic what may you do with your tube

A

angle 10-15 degrees cephalad

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32
Q

what two landmarks are placed perp to the IR for the scapular Y lateral projection

A
  • superior angle of scapula
  • AC joint articulation
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33
Q

if a patient is supine for a grashey how do you position them

A

rotate them 60 degrees

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34
Q

where is CR for AP shoulder trauma

A

scapulohumeral joint (3/4” inferior and slightly lateral to coracoid)

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35
Q

what two muscles attach to the greater tubercle on the humerus

A
  • pectoralis major
  • supraspinatus muscles
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36
Q

where is CR for AP shoulder

A

1” inferior to coracoid process (2” inferior to AC joint)

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37
Q

where is CR for a grashey

A

scapulohumeral joint (2” inferior and 2” medial from superolateral shoulder border)

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38
Q

what device permits good visualization of soft-tissue and bony anatomy for adults shoulders

A

boomerang compensating filter

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39
Q

what projection is best for showing possible dislocation of the proximal humerus

A

shoulder Y projection

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40
Q

most common clinical indication to perform alexander method for the AC joints

A

suspected AC joint seperation

41
Q

what is kVp range for a double contrast study

A

90-100 kVp

42
Q

a posterior dislocation of the humerus projects the humeral head which way in relation to the glenoid cavity when looking at an AP apical oblique axial projection (Garth method)

A

superiorly

43
Q

what projection do you see the gummy bear holding the world

A

lawrence (Axillary view)

44
Q

what is the kVp range for a water-soluble iodinated contrast study

A

80-90 kVp

45
Q

how do you position patient for a scapular Y view

A

position so scapula is perp to IR, pull arm across body

46
Q

how do you position patient for a grashey view

A

turn patient 45 degrees toward injured shoulder

47
Q

how much CR angle does an asthenic patient require for an AP axial clavicle projection

A

30 degrees cephalad

48
Q

where is CR for AC joints projection

A

1” above jugular notch

49
Q

anteriorly the shoulder girdle connects to the trunk where

A

upper sternum - manubrium

50
Q

what bones do the shoulder girdle consists of

A

clavicle and scapula

51
Q

the lower margin of the scapula is at the level of what posterior rib

A

7th (T7)

52
Q

what position places the humerus in a true AP

A

external rotation

53
Q

the length of the humerus is about how much of the body height

A

1/5 of body height

54
Q

this is attached at the deltoid tuberosity

A

deltoid muscle

55
Q

joint between the lateral clavicle and the scapula

A

acromioclavicular joint

56
Q

process directly below the anatomic neck on the anterior surface of the humerus

A

lesser tubercle

57
Q

what is anatomic name for armpit

A

axilla

58
Q

the spine of the scapula separates the posterior surface of the scapula into what two parts

A
  • infraspinous fossa
  • supraspinous fossa
59
Q

the humeral head and glenoid cavity form what joint

A

scapulohumeral joint (glenohumeral or shoulder joint)

60
Q

slightly constricted area directly below and lateral to the head on the humerus

A

anatomic neck

61
Q

who usually has shorter and less curved clavicles

A

females

62
Q

what position represents a true AP projection of the humerus

A

external rotation

63
Q

notch on the superior border of the scapula; partially formed by the base of the coracoid process

A

suprascapular notch

64
Q

in a lateral view of the scapula, which process extends superiorly and posteriorly to the glenoid cavity

A

acromion

65
Q

what is the most lateral corner of the scapula called

A

lateral angle (head of scapula)

66
Q

who usually has thicker and more curved clavicles

A

males

67
Q

what is the lateral end of the clavicle called

A

acromial extremity

68
Q

in a lateral view of the scapula, which process extends anteriorly to the glenoid cavity

A

coracoid process

69
Q

the upper margin of the scapula is at what posterior rib

A

2nd (T2)

70
Q

what position represents a true lateral projection of the humerus

A

internal rotation (condyles perp to IR)

71
Q

the middle, arched portion of the scapula

A

body (blade)

72
Q

what is the thin, flat, lower portion of the body of the scapula sometimes called

A

wing (ala)

73
Q

posteriorly how does the shoulder girdle connect to the trunk

A

muscles only

74
Q

what are the two medial corners of the scapula called

A

superior angle and inferior angle

75
Q

articulation between the medial end of the clavicle and the manubrium

A

sternoclavicular joint

76
Q

area of humerus distal to the surgical neck

A

body (shaft)

77
Q

site of frequent fractures in the humerus

A

surgical neck

78
Q

kVp range for average adult shoulder

A

70-85 kVp with grid

79
Q

what must be ruled out before performing the weight bearing study for AC joint

A

fractures of clavicle

80
Q

larger lateral process on proximal humerus

A

greater tubercle

81
Q

thick beaklike process of the scapula that projects anteriorly beneath the clavicle

A

coracoid process

82
Q

prominent structure on the dorsal (posterior) surface of scapula, beginning at the vertebral border and extending laterally to the acromion

A

spine of scapula

83
Q

medial end of clavicle is called

A

sternal extremity

84
Q

what are the 3 corners of the triangular scapula called collectively

A

angles

85
Q

largest and longest bone of the upper extremity

A

humerus

86
Q

what does the lateral end of the clavicle articulate with

A

acromion of scapula

87
Q

most proximal part of the humerus

A

rounded head

88
Q

all of the joints of the shoulder girdle and humerus are classified as what

A

synovial and diarthrodial

89
Q

long, curved process on the scapula that extends laterally over the head of the humerus

A

acromion

90
Q

what type of joint is the scapulohumeral joint

A

ball and socket (spheroidal)

91
Q

deep groove between the two tubercles on the humerus

A

intertubercular sulcus (bicipital groove)

92
Q

what two bones make up the shoulder joint

A

humerus and scapula

93
Q

the sternoclavicular joints form what landmark

A

jugular notch

94
Q

thickened portion of the ridge of the spine

A

crest of spine

95
Q

what is the shallow depression on the lateral angle called

A

glenoid cavity (fossa)

96
Q

roughened raised triangular elevation along the anterolateral surface of the body (shaft) of the humerus

A

deltoid tuberosity

97
Q

what does the medial end of the clavicle articulate with

A

manubrium of the upper sternum

98
Q

what are the 3 borders of the scapula

A
  • medial (vertebral) border
  • superior border
  • lateral (axillary) border
99
Q

tapered area below head and tubercles of proximal humerus

A

surgical neck

Positioning 1 (44 decks)

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