AP Pelvis: Male and Female

Compare the two pelvis radiographs below. The left radiograph is from a male, and the right radiograph is from a female. Note the differences in the shape of the pelvis between sexes.

Identify the following:

1. iliac crest

2. sacroiliac joint

3. obturator foramen

4. ischial tuberosity

5. pubic symphysis

6. pubic arch

7. ischial spine