Wrist and Hand Radiography Quiz

How many total bones make up the hand and wrist?

• 14

• 26

• 27

• 32

Which is the largest carpal bone?

• Scaphoid

• Hamate

• Capitate

• Lunate

Which carpal bones are best demonstrated with **ulnar deviation**?

• Scaphoid

• Capitate and Hamate

• Pisiform and Triquetrum

• Lunate and Trapezium

What type of fracture is a break of the **scaphoid bone** in the wrist?

• Greenstick fracture

• Barton’s fracture

• Smith’s fracture

• Scaphoid fracture

Which type of fracture occurs when the **distal end of the radius is bent backwards**?

• Colles' fracture

• Smith’s fracture

• Galeazzi fracture

• Torus fracture

A **Galeazzi fracture** involves which part of the wrist?

• Scaphoid bone

• Distal third of the radius with dislocation of the distal radioulnar joint

• Distal radius with volar dislocation

• Distal forearm, where the radius is bent backward

For a **PA projection of the wrist**, where should the central ray (CR) be directed?

• To the middle of the scaphoid

• Perpendicular to the wrist joint (mid-carpal area)

• To the ulnar styloid process

• Perpendicular to the mid-carpal area, midway between the radial and ulnar styloid processes

In the **Stecher Method**, what angulation is used to visualize the scaphoid?

• 10° to 15° towards the elbow

• 20° angulation of the tube toward the elbow

• 45° lateral rotation of the wrist

• 5° backward rotation of the wrist

What type of movement is **ulnar deviation**?

• Hand turning outward toward the ulnar side

• Hand turning inward toward the radial side

• Flexion of the forearm

• Hyperextension of the wrist

**Radial deviation** helps demonstrate which carpal bones?

• Scaphoid

• Hamate, Pisiform, Triquetrum, Lunate

• Capitate and Hamate

• Radius and Ulna