Chapter 4: Part B

1. In the anatomic position, which of the bones of the forearm is located on the lateral side and medial side

Radius and Ulna

2. Is the trochlear notch part of the radius, ulna, or distal humerus?

Ulnar

2.B: Is the Radial Notch part of the radius, ulna, or distal humerus?

Ulnar

2.C: Is the Olecranon Fossa part of the radius, ulna, or distal humerus?

Distal Humerus

2.D: Is the Trochlea part of the radius, ulna, or distal humerus?

Distal Humerus

3. Which joint permits the forearm to rotate during pronation

Proximal Radioulnar Joint

4.A: The articular portion of the medial aspect of the distal humerus is called what

Trochlea

4.B: The similar structure found on the lateral aspect of the distal humerus is called what

Capitulum

5. The deep depression located on the posterior aspect of the distal humerus is the ______

Olecranon Fossa

8. Ellipsoidal joints are classified as freely movable, or ______, and allow movement in ________ directions

Capitulum and Trochlea

10. Which ligament of the wrist extends from the styloid process of the radius to the lateral aspect of the scaphoid and trapezium bones

Radial Collateral Ligament

11. What is the name of the two special turning or bending positions of the hand and wrist that demonstrate medial and lateral aspects of the carpal region

Ulnar Deviation and Radial Deviation

12. What position is most commonly performed to detect a fracture of the scaphoid bone

Ulnar Deviation

13. How does the forearm appear radiographically if pronated for a PA projection

Proximal radius crosses over the ulna

14. The two important fat stripes or bands around the wrist joints are the ______

Scaphoid Fat stripe and pronator fat stripe

15. The fat pads around the elbow joints are valuable diagnostic indicators if the following three technical/positioning requirements are met with the lateral position

Elbow flexed 90 degrees, optimal exposure factors used, In a true lateral position

16. True/False: If the posterior fat pad of the elbow is not visible radiographically, it suggests that a nonobvious radial head or neck fracture is present

False

17. True/False: Excessive kVp may obscure the visibility of a fat pad

True

18. True/False: Trauma or infection makes the anterior fat pad more difficult to see on a lateral elbow radiograph

False

19. Which routine projections best demonstrate the scaphoid fat stripe

PA and oblique wrist

20. Which routine projection best demonstrates the pronator fat stripe

Lateral wrist