Posterior superior iliac spine

The posterior border of the ala, shorter than the anterior, also presents two projections separated by a notch, the posterior superior iliac spine and the posterior inferior iliac spine. The posterior superior iliac spine serves for the attachment of the oblique portion of the posterior sacroiliac ligaments and the multifidus.

Posterior superior iliac spine
Right hip bone. External surface. (Posterior superior spine labeled at center left.)
Surface anatomy of the back. Posterior superior iliac spine lies in the marking of S2.
Latinspina iliaca posterior superior
Anatomical terms of bone

See also


This article incorporates text in the public domain from page 234 of the 20th edition of Gray's Anatomy (1918)

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