crest of sacrum

Introduction

Dorsal surface of the sacrum marked by five prominent ridges:

• median (central)
  • fused rudimentary spinous processes of the superior 3 or 4 sacral vertebra.
• medial (intermediate)
  • fused articular processes
• lateral
  • represent the tips of the transverse processes of the fused sacral vertebra Clinical feature: Inverted U - shaped sacral hiatus & sacral cornua.

More general terms

• bony process

Additional terms

• bone
• vertebra

Component of

• back