Which pelvic landmark lies along the superior border of the pelvis on the ilium?

• A. ASIS
• B. Iliac Crest
• C. Pubic Symphysis
• D. PIIS

Answer: (B)

The iliac crest is the curved ridge that forms the top edge of the ilium, marking the superior border of the pelvis. It runs along the upper rim of the pelvis from the front end at the anterior superior iliac spine to the back end at the posterior superior iliac spine, so it lies exactly along the superior border of the pelvis on the ilium. The anterior superior iliac spine is a prominent point on that edge, but the landmark that defines the border itself is the iliac crest. The pubic symphysis sits at the front midline, and the posterior inferior iliac spine is on the back lower part of the bone, not along the superior border.