The PA (posteroanterior) view is obtained in any radiologic examination of the hand and wrist. Since the human thumb is "rotated" 90° with respect to the fingers, this radiograph gives an oblique view of the thumb, but a PA view of all other structures. This shows a magnified view of the carpals.

Identify the following:

1. styloid process (radius)

2. styloid process (ulna)

3. scaphoid

4. lunate

5. triquetrum

6. pisiform

7. trapezium

8. trapezoid

9. capitate

10. hamate

11. hook of hamate

12. metacarpals

13. phalanges