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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).

Primary Medical Reviewer William M. Green, MD
- Emergency Medicine
Primary Medical Reviewer Kathleen Romito, MD
- Family Medicine
Specialist Medical Reviewer Kathie Hummel-Berry, PT, PhD
- Physical Therapy
Specialist Medical Reviewer Robert B. Keller, MD
- Orthopedics
Last Updated February 15, 2006

WebMD Medical Reference from Healthwise

Last Updated: February 15, 2006
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