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.
Current as of: October 13, 2016
Author: Healthwise Staff
Medical Review: Anne C. Poinier, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Martin J. Gabica, MD - Family Medicine
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