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IMAG 301- Positioning Princ. I > Ch. 5 Shoulder Girdle > Flashcards

Ch. 5 Shoulder Girdle Flashcards

1
Q

Shoulder Girdle consists of what?

A

Clavicle and Scapula

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2
Q

Acromial extremity (lateral end) of clavicle articulates with what?

A

Acromion on scapula (AC joint)

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3
Q

What is the AC joint?

A

Acromioclavicular

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4
Q

What is the SC joint?

A

Sternoclavicular joint (manubrium of sternum)

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5
Q

What does the Shoulder Girdle articulate with?

A
  • Head of humerus (shoulder joint)
  • Manubrium of sternum (SC joint)
  • AC joint
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6
Q

What kind of bone is the Scapula?

A

Flat bone

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7
Q

Sternal exremity (medial end) of clavicle articulates with what?

A

The manubrium of the sternum (SC joint)

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8
Q

what is the lateral thickened end of the scapular spine called (the most lateral part of the scapula)?

A

Acromion

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9
Q

What positions can you image the shoulder girdle?

A

Upright or recumbent

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10
Q

For ID markers, what side do you want to mark on the patient, the affected side or unaffected side?

A

Affected Side marked

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11
Q

What is the respiration for most exposures of the shoulder?

A

Suspended respiration

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12
Q

What is the breathing technique that is used for the Transthoracic lateral projection?

A

Patient breathes normally through exposure, and technologist uses low mA with a long exposure time

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13
Q

What is the other name for the Transthoracic Projection?

A

Lawrence method

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14
Q

AP Projection Internal Rotation of Shoulder positioning?

A
  • Rotate patient slightly toward affected shoulder
  • body of scapula parllel to IR
  • flex elbow slightly
  • Humeral epicondyles must be perpendicular to IR
  • CR enteres 1 in. below coracoid process
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15
Q

AP Projection External Rotation of Shoulder positioning?

A
  • Rotate patient slightly toward affected shoulder
  • body of scapula parallel to IR
  • flex elbow slightly
  • Humeral epicondyles are parallel to IR
  • 1 in below coracoid process
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16
Q

AP Projection Neutral Position of Shoulder

A
  • Patient’s palm rest against their thigh (this places epicondyles 45 degrees to IR)
  • Center 1 in. below coracoid process
17
Q

AP Oblique (Greyshey) Positioning

A
  • 35-45 degrees posterior oblique position
  • affected shoulder closer to IR
  • rotation of patient should place scapula parallel to IR
  • Head of humerus will be in contact with IR
18
Q

Why is the Greyshey projection done?

A

It is done to see the glenoid humeral joint (opens up this joint space)

19
Q

Centering for greyshey projection of shoulder?

A
  • Center is perpendicular to glenoid cavity

- enters 2 in. medial and inferior to superlateral border of shoulder

20
Q

Transthoracic Lateral projection is used for what type of patients?

A

Trauma patients who can not rotate or abduct their arm

21
Q

Positioning of Transthoracic Lateral projection

A
  • Supine or upright lateral
  • Affected limb closer to the IR
  • Unaffected limb elevated over head
  • Center surgical neck of humerus to IR
  • CR enters midcoronal plane at surgical neck
22
Q

If shoulders are in the same plane for the Transthoracic projection, what is done to the CR?

A

CR is angled 10-15 degrees towards the head

23
Q

If the greater tubercle is in profile, which position is the humerus in for the AP Shoulder projection?

A

External Rotation

24
Q

What is in profile for the Internal Rotation of the humerus for an AP shoulder projection?

A

Lesser Tubercle is in profile

25
Q

What is the most anterior bony projection of the scapula?

A

Coracoid process

26
Q

Where on the scapula is the scapular notch?

A

Near the lateral end of the superior border

27
Q

What bone forms the anterior part of the shoulder girdle?

A

Clavicle

28
Q

What are the three shoulder girdle articulations?

A
  • Scapulohumeral
  • acromioclavicular
  • sternoclavicular
29
Q

What are the joint types for each articulation of the shoulder girdle?

A
  • Scapulohumeral: ball and socket

- AC and SC joint: gliding

30
Q

What bone articulates with the glenoid cavity?

A

Humerus

31
Q

What bone articulates with the medial end of the clavicle?

A

Sternum

32
Q

Which borders of the scapula unite to form the superior angle?

  1. medial 2. lateral 3. superior
    a. 1 and 2 only
    b. 1 and 3 only
    c. 2 and 3 only
    d. 1, 2, and 3
A

B. 1 and 3 only (medial and superior borders)

33
Q

Which portion of the scapula articulates with the humeral head?

a. acromion
b. coracoid process
c. coronoid process
d. glenoid fossa

A

d. Glenoid fossa

34
Q

How should the humeral epicondyles be positioned for the AP projection of the shoulder with the shoulder in internal rotation?

a. Parallel
b. Perpendicular
c. 45 degrees lateral oblique
d. 45 degrees medial oblique

A

B. perpendicular

35
Q

Which projection of the shoulder best demonstrates the greater tubercle of the humerus in profile?

A

AP projection with external rotation

36
Q

Which projection of the shoulder best demonstrates the humeral head in profile?

A

AP projection with external rotation

37
Q

Which projection of the shoulder best demonstrates the lesser tubercle of the humerus in profile and pointing toward the glenoid cavity?

A

AP projection with internal rotation

IMAG 301- Positioning Princ. I (8 decks)

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