What Is the Lumbar Spine?
Lumbar Spine is the lower section of the vertebral column, located between the thoracic spine and the sacrum. It contains five vertebrae that support the trunk, guide lower-back movement, and help protect nerves traveling toward the pelvis and legs. Muscles, discs, ligaments, and joints work with these bones during daily activities.
Quick Facts About Lumbar Spine
Category
Lower spinal region
Used for
Supporting the trunk and guiding movement
Common confusion
The lumbar spine is not the whole spine
Also called
Lower Spine, Lower back
Often discussed with
Chiropractic Adjustment
Key Takeaways About Lumbar Spine
- It sits between the thoracic spine and sacrum.
- Its joints and discs support bending, lifting, and rotation.
- It is not the same structure as the entire back.
How Lumbar Spine Works
Lumbar spine function depends on the coordinated action of vertebrae, discs, facet joints, muscles, and ligaments. The vertebrae provide a stable framework, while the discs help distribute pressure between neighboring bones. Facet joints guide movement and limit excessive motion during bending or turning.
Related glossary terms: Cervical Spine, Facet Joint, Range of Motion.
Movement in this region connects the rib-free lower trunk with the pelvis. The lumbar spine helps transfer force during walking, sitting, standing, and lifting. Nerves pass through openings between the vertebrae and continue toward the lower body. Clinicians may assess posture, active movement, muscle control, and joint motion to understand how the area functions during a chiropractic adjustment.
From the Advanced Injury Care Clinic team
When we assess the lumbar spine, we consider joint motion, surrounding muscle control, posture, and the movement pattern that brings a person to care. During a chiropractic adjustment, our team applies a focused technique based on the examination findings and the person’s reported symptoms.
Lumbar Spine in Practice: A Real-World Example
A person may report lower-back stiffness after repeated lifting at work. During a chiropractic adjustment visit, the clinician may examine lumbar movement and nearby pelvic motion before selecting an appropriate technique.
Related Services
Related Terms
Cervical Spine
Cervical Spine is the upper section of the vertebral column that supports the head and protects…
Facet Joint
A facet joint is a small, paired connection between the bones at the back of the…
Range of Motion
Range of Motion is the amount and direction a joint can move through its available path…
Sciatica
Sciatica is pain, tingling, numbness, or weakness that follows the path of the sciatic nerve from…
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.