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Glossary

What Is the Lumbar Spine?

Lumbar Spine is the lower section of the spinal column between the thoracic spine and sacrum. It contains five vertebrae that support the trunk, protect nerve structures, and help you bend, rotate, and extend your lower back. Discs, facet joints, ligaments, muscles, and nerves work with these vertebrae during movement.

Quick Facts About Lumbar Spine

Category

Spinal region

Used for

Assessing lower-back function

Common confusion

The lumbar spine is not the entire back

Also called

Lower back spine, Lower back

Often discussed with

Back Pain Treatment, Chiropractic Adjustment

Key Takeaways About Lumbar Spine

  • It forms the lower back between the rib cage and pelvis.
  • Its joints, discs, and muscles share movement and load.
  • Lumbar spine is not the same as the sacroiliac joint.

How Lumbar Spine Works

Hands hold a spine model over a desk in a medical office, with a computer blurred behind them

The lumbar spine transfers forces between the upper body and pelvis while allowing controlled bending, extension, and rotation. Intervertebral discs help separate neighboring vertebrae and distribute pressure. Facet joints guide motion at the back of the spinal column, while ligaments and muscles help maintain control.

Related glossary terms: Thoracic Spine, Sacroiliac Joint, Facet Joint.

Clinicians assess this region through your movement, posture, muscle control, and reported symptoms. They may also examine how the lumbar spine relates to the thoracic spine, pelvis, hips, and nearby nerves. A limited movement pattern can involve more than one structure, so the examination considers the whole movement system. The sacroiliac joint connects the pelvis to the sacrum and may produce symptoms near the lower back, but it is a separate structure.

Two people study a laptop showing a lumbar spine diagram while one points at a model vertebra on a table

From the Advanced Injury Care Clinic team

When we assess the lumbar spine during Back Pain Treatment, we observe how the lower back moves with the pelvis and hips. We also check muscle control, tenderness, and symptom patterns. Our findings help us select appropriate hands-on care and exercise recommendations for the person’s presentation.

Lumbar Spine in Practice: A Real-World Example

A person may report lower-back pain after lifting a box and feel discomfort during bending. During Back Pain Treatment, the lumbar spine is considered alongside hip motion, pelvic position, muscle control, and the person’s symptom pattern.

Related Terms

Thoracic Spine

Thoracic Spine is the middle section of the spinal column, located between the neck and lower…

Sacroiliac Joint

Sacroiliac Joint is the connection between the sacrum at the base of the spine and the…

Facet Joint

A facet joint is a small synovial joint at the back of the spine that connects…

Range Of Motion

Range Of Motion is the available movement at a joint or group of joints, measured through…

Advanced Injury Care Clinic

Have Questions About Lumbar Spine?

Contact Advanced Injury Care Clinic for practical guidance on Lumbar Spine and related chiropractor work in Hendersonville.

The health and wellness information on this website is for general informational purposes only and is not medical advice. It does not create a provider-patient relationship. Always consult a qualified licensed provider in Hendersonville, TN, United States about your specific condition before making care decisions. Individual results vary.

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