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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
an AP acial projection of the clavicle is angle how
15-30 degrees cephalad
26
how do you position a patient for an AP scapula
bend arm up and back of hand to forehead
27
where is CR for an AP projection of the shoulder
1" inferior to coracoid process
28
what is the anterior surface of the scapula called
costal surface
29
what is an excellent modality for demonstrating bony injuries and extent of fractures
computed tomography (CT)
30
large concavity/depression in the middle of the anterior surface of the scapula
subscapular fossa
31
if patient is unable to elevate uninjured arm and shoulder sufficiently for a transthoracic what may you do with your tube
angle 10-15 degrees cephalad
32
what two landmarks are placed perp to the IR for the scapular Y lateral projection
- superior angle of scapula - AC joint articulation
33
if a patient is supine for a grashey how do you position them
rotate them 60 degrees
34
where is CR for AP shoulder trauma
scapulohumeral joint (3/4" inferior and slightly lateral to coracoid)
35
what two muscles attach to the greater tubercle on the humerus
- pectoralis major - supraspinatus muscles
36
where is CR for AP shoulder
1" inferior to coracoid process (2" inferior to AC joint)
37
where is CR for a grashey
scapulohumeral joint (2" inferior and 2" medial from superolateral shoulder border)
38
what device permits good visualization of soft-tissue and bony anatomy for adults shoulders
boomerang compensating filter
39
what projection is best for showing possible dislocation of the proximal humerus
shoulder Y projection
40
most common clinical indication to perform alexander method for the AC joints
suspected AC joint seperation
41
what is kVp range for a double contrast study
90-100 kVp
42
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)
superiorly
43
what projection do you see the gummy bear holding the world
lawrence (Axillary view)
44
what is the kVp range for a water-soluble iodinated contrast study
80-90 kVp
45
how do you position patient for a scapular Y view
position so scapula is perp to IR, pull arm across body
46
how do you position patient for a grashey view
turn patient 45 degrees toward injured shoulder
47
how much CR angle does an asthenic patient require for an AP axial clavicle projection
30 degrees cephalad
48
where is CR for AC joints projection
1" above jugular notch
49
anteriorly the shoulder girdle connects to the trunk where
upper sternum - manubrium
50
what bones do the shoulder girdle consists of
clavicle and scapula
51
the lower margin of the scapula is at the level of what posterior rib
7th (T7)
52
what position places the humerus in a true AP
external rotation
53
the length of the humerus is about how much of the body height
1/5 of body height
54
this is attached at the deltoid tuberosity
deltoid muscle
55
joint between the lateral clavicle and the scapula
acromioclavicular joint
56
process directly below the anatomic neck on the anterior surface of the humerus
lesser tubercle
57
what is anatomic name for armpit
axilla
58
the spine of the scapula separates the posterior surface of the scapula into what two parts
- infraspinous fossa - supraspinous fossa
59
the humeral head and glenoid cavity form what joint
scapulohumeral joint (glenohumeral or shoulder joint)
60
slightly constricted area directly below and lateral to the head on the humerus
anatomic neck
61
who usually has shorter and less curved clavicles
females
62
what position represents a true AP projection of the humerus
external rotation
63
notch on the superior border of the scapula; partially formed by the base of the coracoid process
suprascapular notch
64
in a lateral view of the scapula, which process extends superiorly and posteriorly to the glenoid cavity
acromion
65
what is the most lateral corner of the scapula called
lateral angle (head of scapula)
66
who usually has thicker and more curved clavicles
males
67
what is the lateral end of the clavicle called
acromial extremity
68
in a lateral view of the scapula, which process extends anteriorly to the glenoid cavity
coracoid process
69
the upper margin of the scapula is at what posterior rib
2nd (T2)
70
what position represents a true lateral projection of the humerus
internal rotation (condyles perp to IR)
71
the middle, arched portion of the scapula
body (blade)
72
what is the thin, flat, lower portion of the body of the scapula sometimes called
wing (ala)
73
posteriorly how does the shoulder girdle connect to the trunk
muscles only
74
what are the two medial corners of the scapula called
superior angle and inferior angle
75
articulation between the medial end of the clavicle and the manubrium
sternoclavicular joint
76
area of humerus distal to the surgical neck
body (shaft)
77
site of frequent fractures in the humerus
surgical neck
78
kVp range for average adult shoulder
70-85 kVp with grid
79
what must be ruled out before performing the weight bearing study for AC joint
fractures of clavicle
80
larger lateral process on proximal humerus
greater tubercle
81
thick beaklike process of the scapula that projects anteriorly beneath the clavicle
coracoid process
82
prominent structure on the dorsal (posterior) surface of scapula, beginning at the vertebral border and extending laterally to the acromion
spine of scapula
83
medial end of clavicle is called
sternal extremity
84
what are the 3 corners of the triangular scapula called collectively
angles
85
largest and longest bone of the upper extremity
humerus
86
what does the lateral end of the clavicle articulate with
acromion of scapula
87
most proximal part of the humerus
rounded head
88
all of the joints of the shoulder girdle and humerus are classified as what
synovial and diarthrodial
89
long, curved process on the scapula that extends laterally over the head of the humerus
acromion
90
what type of joint is the scapulohumeral joint
ball and socket (spheroidal)
91
deep groove between the two tubercles on the humerus
intertubercular sulcus (bicipital groove)
92
what two bones make up the shoulder joint
humerus and scapula
93
the sternoclavicular joints form what landmark
jugular notch
94
thickened portion of the ridge of the spine
crest of spine
95
what is the shallow depression on the lateral angle called
glenoid cavity (fossa)
96
roughened raised triangular elevation along the anterolateral surface of the body (shaft) of the humerus
deltoid tuberosity
97
what does the medial end of the clavicle articulate with
manubrium of the upper sternum
98
what are the 3 borders of the scapula
- medial (vertebral) border - superior border - lateral (axillary) border
99
tapered area below head and tubercles of proximal humerus
surgical neck

Positioning 1 (53 decks)

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