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Lumbosacral region of the spine (lower back)

Lumbosacral region of the spine (lower back)

Illustration of lumbosacral region of the spine (lower back)

The spine is composed of 33 interlocking bones called vertebrae. The lumbosacral region of the spine consists of 5 lumbar vertebrae and the sacrum (5 bones joined together).

Last Updated: February 6, 2008
Medical Review: William M. Green, MD - Emergency Medicine
Robert B. Keller, MD - Orthopedics
This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information.


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