Chapter 5: Humerus/Shoulder Girdle

Question 1

An imaginary line connecting the humeral epicondyles is positioned perpendicular to the IR for:
1. an internally rotated AP shoulder image
2. a lateral humeral image

Answer 1

1 and 2

Question 2

The greater tubercle of the humerus is demonstrated in profile on the ___ projection

Answer 2

True AP

Question 3

Where is the CR directed for an AP projection of the humerus?

Answer 3

Midpoint of the humerus

Question 4

Which of the following is shown in profile on the lateromedial/rotational lateral of the Humerus?
Lesser tubercle or greater tubercle

Answer 4

Lesser tubercle

Question 5

For an AP projection of the shoulder (both internal and external rotation), the central ray is centered:

Answer 5

1 inch inferior to the coracoid process

Question 6

For the AP Projection—External Rotation: Shoulder, the ___ tubercle is in profile and the ___ tubercle is superimposed over humeral head.

Answer 6

Greater; lesser

Question 7

For an AP shoulder image, internal rotation, the:
1. effected shoulder positioned to place against the IR
2. central ray is centered to 1 inch inferior to the coracoid
3. imaginary line connecting the humeral epicondyles are perpendicular to the IR

Answer 7

1, 2 and 3

Question 8

For an AP scapular image, the:
1. patient’s arm is abducted 90 degrees to the body
2. image is exposed on expiration only
3. patient’s upper midcoronal plane leans slightly away from the IR
4. central ray is centered 2 inches (5 cm) inferior to the coracoid

Answer 8

1 and 4

Question 9

For an AP axial projection of the clavicle, the exposure should be made at the end of:

Answer 9

Inhalation

Question 10

An AP scapular image with accurate positioning demonstrates:
1. nearly superimposed anterior and posterior glenoid fossa margins
2. the medial (vertebral) scapular border without thoracic cavity superimposition
3. the humeral shaft at a 90-degree angle with the body
4. the scapular body with slight longitudinal foreshortening

Answer 10

1 and 3

Question 11

The CR for the AP Axial Clavicle is directed

Answer 11

15 to 30 degrees cephalic to mid clavicle

Question 12

Which projection of the shoulder girdle requires that the patient be rotated 45 to 60 degrees from a PA position?

Answer 12

Lateral scapula

Question 13

For the Lateral Scapula, patients are obliqued:

Answer 13

until the plane of the scapular body is perpendicular to the IR

Question 14

For the AP Oblique Projection of the Shoulder, the patient is rotated ___ degrees ___ the affected side

Answer 14

35 to 40 degrees towards the affected side

Question 15

If the hand is supinated, the shoulder will be in the:

Answer 15

external rotation.

Question 16

The AP Axial projection for the clavicle on an asthenic patient would require a CR angle of

Answer 16

20 - 30 degrees

Question 17

T/F: It is not neccesary to include the shoulder joint in an AP Humerus?

Answer 17

False