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Definition of Vertebrae, lumbar

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

Vertebrae, lumbar: There are 5 lumbar vertebrae. The lumbar vertebrae are situated between the thoracic vertebrae and the sacral vertebrae in the spinal column. The 5 lumbar vertebrae are represented by the symbols L1 through L5.