Atlas Images
Sacrum, Median Sagittal Section
  1. S1
  2. S2
  3. S3
  4. S4
  5. S5
  6. Sacral canal
  7. Spinous tubercle of S2
  8. Obturator foramen
  9. Ischium
  10. Superior pubic ramus
  11. Ilium
Image Copyright 1997 The Anatomy Project, Published by Parthenon Publishing Group, Unauthorized use prohibited.