What Is the Lumbar Spine?
Lumbar Spine is the lower section of the vertebral column, located between the thoracic spine and the sacrum. The lumbar spine contains five large vertebrae that support much of the body's weight and allow bending, rotation, and controlled movement. Discs, joints, nerves, muscles, and ligaments work together in this region.
Quick Facts About Lumbar Spine
Category
Spinal region
Used for
Assessing lower back structure and movement
Common confusion
The lumbar spine is not the entire back
Also called
Lower back vertebrae, Lumbar region
Often discussed with
Back Pain Relief
Key Takeaways About Lumbar Spine
- The lumbar spine sits between the rib-bearing spine and the sacrum.
- Its discs and joints help distribute forces during movement.
- Lower back pain does not always come from the lumbar spine.
How Lumbar Spine Works
The lumbar spine works as a weight-bearing section of the back while allowing the trunk to bend, extend, and turn. Its vertebrae form a protective passage for the spinal cord and nerve roots. Between the vertebrae, discs help spread load and support smooth movement.
Related glossary terms: Lumbar Radiculopathy, Facet Joint, Range of Motion.
Healthcare professionals assess the lumbar spine through history, observation, movement testing, and a physical examination. They may consider posture, joint mobility, muscle control, and symptoms that travel into the buttock or leg. The facet joints guide motion between nearby vertebrae, while the sacrum connects the spine to the pelvis. These relationships help explain why lower back symptoms can involve nearby areas.
From the Advanced Injury Care Clinic team
When we assess the lumbar spine, we consider movement, posture, muscle control, and the location of reported symptoms. Our team connects those findings with the person’s functional goals, such as sitting, walking, lifting, or returning to normal daily activity. We document relevant changes across care.
Lumbar Spine in Practice: A Real-World Example
A person with back pain after lifting may show limited bending and guarded movement through the lumbar spine. During a Back Pain Relief visit, the examination may consider lumbar motion alongside the hips and pelvis.
Related Services
Related Terms
Lumbar Radiculopathy
Lumbar Radiculopathy is a condition involving irritation or compression of a nerve root in the lower…
Facet Joint
A facet joint is a small paired joint at the back of the spine that connects…
Range of Motion
Range of Motion is the amount a joint can move through its available directions. Clinicians assess…
Spinal Stenosis
Spinal Stenosis is a narrowing of the spaces within the spine that can reduce room for…
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 Brentwood.