Body Location or Region
Lumbar Region
lum·bar re·gion [ luhm-ber, -bahr ree-juhn ]
Definitions related to lumbar region:
  • The area of the body below the ribs and above the hipbones.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • The region of the spine below the ribs and above the hipbones.
    NCI
    U.S. National Cancer Institute, 2021
  • (back of abdomen) Subdivision of abdomen which is demarcated from the front of the abdomen by the posterior surface of the anterior layer of the thoracolumbar fascia and the anterior surface of the lumbar vertebral column; together with the front of the abdomen, it constitutes the abdomen. Examples: There is only one back of abdomen.
    Digital Anatomist
    University of Washington, 2003
  • (back of abdomen) Subdivision of back each instance of which has as its constitutional part some complete set of vertebral arches (L1-L5) and anatomical entities located posterior to them; together with back of thorax and back of pelvis constitutes the back. Examples: There is only one back of abdomen.
    Foundational Model of Anatomy
    University of Washington, 2017
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.