Sacrum

The sacrum is a large triangular bone at the bottom of the spine. It is inserted like a wedge between the two hipbones.

The sacrum is shorter and wider in women than in men.

Last Updated: November 25, 2009

Author: Maria Essig

Medical Review: Kathleen Romito, MD - Family Medicine & C. Dale Mercer, MD, FRCSC, FACS - General Surgery

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