Title: lumbar spine
Long Title: IUPAC Gold Book - lumbar spine
DOI: 10.1351/goldbook.11856
Status: current

Definition
Portion of the vertebral column of the lower back between the thoracic spine and sacrum, in humans consisting of five vertebrae designated L1 to L5.

Related Terms
- thoracic spine: https://goldbook.iupac.org/terms/view/12136
- vertebrae: https://goldbook.iupac.org/terms/view/12163
- vertebral column: https://goldbook.iupac.org/terms/view/12169

Source
- PAC, 2015, 87, 841. 'IUPAC Glossary of terms used in neurotoxicology (IUPAC Recommendations 2015)' on page 878 (https://doi.org/10.1515/pac-2015-0103)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/11856/html
- json: https://goldbook.iupac.org/terms/view/11856/json
- xml: https://goldbook.iupac.org/terms/view/11856/xml

Citation: Citation: 'lumbar spine' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.11856
License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms.
Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .
Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.
Accessed: 2026-05-10T21:35:18+00:00