LRA 218 Final Exam 2026-2027 -
Comprehensive Question Bank Complete
Study Guide with Verified Answers and
Rationales
Comprehensive Practice Question Bank
Shoulder Girdle & Upper Extremity
1. Which projection is commonly used to demonstrate the entire humerus?
A. AP
B. Lateral
C. Oblique
D. Tangential
Answer: A
Rationale: An AP projection provides an overview of the humerus and should include both the
shoulder and elbow joints when possible.
2. For an AP projection of the humerus, the arm should generally be positioned:
A. In full flexion
B. In anatomical position when tolerated
C. Across the chest
D. Behind the back
Answer: B
Rationale: An anatomical position allows appropriate demonstration of the humeral shaft and
proximal anatomy.
3. Which joint is formed by the humerus and scapula?
A. Elbow joint
B. Glenohumeral joint
C. Radioulnar joint
D. Acromioclavicular joint
,Answer: B
Rationale: The humeral head articulates with the glenoid cavity of the scapula at the
glenohumeral joint.
4. The proximal end of the humerus contains the:
A. Olecranon
B. Radial head
C. Humeral head
D. Coronoid process
Answer: C
Rationale: The humeral head is located at the proximal end and articulates with the glenoid
cavity.
5. Which structure forms the lateral prominence of the proximal humerus?
A. Lesser tubercle
B. Greater tubercle
C. Coracoid process
D. Olecranon
Answer: B
Rationale: The greater tubercle projects laterally from the proximal humerus.
6. The lesser tubercle of the humerus is located primarily on the:
A. Anterior aspect
B. Posterior aspect
C. Distal shaft
D. Medial epicondyle
Answer: A
Rationale: The lesser tubercle projects anteriorly and serves as an attachment site for the
subscapularis tendon.
7. Which scapular projection is particularly useful for evaluating the glenoid cavity?
A. AP axial
B. Grashey
,C. Lateral humerus
D. AP forearm
Answer: B
Rationale: The Grashey projection demonstrates the glenoid cavity more directly by placing it
nearly parallel to the image receptor.
8. The Grashey method requires rotation of the patient approximately:
A. 5–10°
B. 10–15°
C. 35–45°
D. 70–80°
Answer: C
Rationale: Approximately 35–45° of body rotation is commonly used to place the scapula
parallel to the IR.
9. Which shoulder projection is designed to demonstrate the joint space of the glenohumeral
joint?
A. Grashey
B. AP forearm
C. Lateral elbow
D. AP humerus
Answer: A
Rationale: The Grashey projection is specifically useful for demonstrating the glenohumeral
joint space.
10. The scapular Y projection is commonly used to evaluate:
A. Shoulder alignment
B. Wrist alignment
C. Finger fractures
D. Elbow flexion
Answer: A
Rationale: The scapular Y creates a lateral-type view useful for assessing the relationship of the
humeral head to the glenoid.
, 11. In a properly positioned scapular Y image, the acromion and coracoid process form the arms
of the:
A. X
B. Y
C. T
D. V
Answer: B
Rationale: The acromion and coracoid contribute to the characteristic Y configuration.
12. A transscapular lateral projection is useful when the patient:
A. Can freely rotate the shoulder
B. Cannot move the injured arm adequately
C. Has an uninjured wrist
D. Requires a foot examination
Answer: B
Rationale: The lateral scapular or transscapular approach can demonstrate shoulder alignment
while minimizing movement of the affected arm.
13. Which structure articulates with the acromion?
A. Clavicle
B. Radius
C. Ulna
D. Humeral trochlea
Answer: A
Rationale: The lateral clavicle articulates with the acromion at the acromioclavicular joint.
14. The acromioclavicular joint is located between the:
A. Humerus and scapula
B. Clavicle and acromion
C. Radius and ulna
D. Sternum and humerus
Comprehensive Question Bank Complete
Study Guide with Verified Answers and
Rationales
Comprehensive Practice Question Bank
Shoulder Girdle & Upper Extremity
1. Which projection is commonly used to demonstrate the entire humerus?
A. AP
B. Lateral
C. Oblique
D. Tangential
Answer: A
Rationale: An AP projection provides an overview of the humerus and should include both the
shoulder and elbow joints when possible.
2. For an AP projection of the humerus, the arm should generally be positioned:
A. In full flexion
B. In anatomical position when tolerated
C. Across the chest
D. Behind the back
Answer: B
Rationale: An anatomical position allows appropriate demonstration of the humeral shaft and
proximal anatomy.
3. Which joint is formed by the humerus and scapula?
A. Elbow joint
B. Glenohumeral joint
C. Radioulnar joint
D. Acromioclavicular joint
,Answer: B
Rationale: The humeral head articulates with the glenoid cavity of the scapula at the
glenohumeral joint.
4. The proximal end of the humerus contains the:
A. Olecranon
B. Radial head
C. Humeral head
D. Coronoid process
Answer: C
Rationale: The humeral head is located at the proximal end and articulates with the glenoid
cavity.
5. Which structure forms the lateral prominence of the proximal humerus?
A. Lesser tubercle
B. Greater tubercle
C. Coracoid process
D. Olecranon
Answer: B
Rationale: The greater tubercle projects laterally from the proximal humerus.
6. The lesser tubercle of the humerus is located primarily on the:
A. Anterior aspect
B. Posterior aspect
C. Distal shaft
D. Medial epicondyle
Answer: A
Rationale: The lesser tubercle projects anteriorly and serves as an attachment site for the
subscapularis tendon.
7. Which scapular projection is particularly useful for evaluating the glenoid cavity?
A. AP axial
B. Grashey
,C. Lateral humerus
D. AP forearm
Answer: B
Rationale: The Grashey projection demonstrates the glenoid cavity more directly by placing it
nearly parallel to the image receptor.
8. The Grashey method requires rotation of the patient approximately:
A. 5–10°
B. 10–15°
C. 35–45°
D. 70–80°
Answer: C
Rationale: Approximately 35–45° of body rotation is commonly used to place the scapula
parallel to the IR.
9. Which shoulder projection is designed to demonstrate the joint space of the glenohumeral
joint?
A. Grashey
B. AP forearm
C. Lateral elbow
D. AP humerus
Answer: A
Rationale: The Grashey projection is specifically useful for demonstrating the glenohumeral
joint space.
10. The scapular Y projection is commonly used to evaluate:
A. Shoulder alignment
B. Wrist alignment
C. Finger fractures
D. Elbow flexion
Answer: A
Rationale: The scapular Y creates a lateral-type view useful for assessing the relationship of the
humeral head to the glenoid.
, 11. In a properly positioned scapular Y image, the acromion and coracoid process form the arms
of the:
A. X
B. Y
C. T
D. V
Answer: B
Rationale: The acromion and coracoid contribute to the characteristic Y configuration.
12. A transscapular lateral projection is useful when the patient:
A. Can freely rotate the shoulder
B. Cannot move the injured arm adequately
C. Has an uninjured wrist
D. Requires a foot examination
Answer: B
Rationale: The lateral scapular or transscapular approach can demonstrate shoulder alignment
while minimizing movement of the affected arm.
13. Which structure articulates with the acromion?
A. Clavicle
B. Radius
C. Ulna
D. Humeral trochlea
Answer: A
Rationale: The lateral clavicle articulates with the acromion at the acromioclavicular joint.
14. The acromioclavicular joint is located between the:
A. Humerus and scapula
B. Clavicle and acromion
C. Radius and ulna
D. Sternum and humerus
