What Is the Lumbar Spine?
Lumbar Spine is the lower section of the vertebral column between the thoracic spine and pelvis. It contains vertebrae, discs, joints, nerves, ligaments, and supporting muscles. This region helps carry upper-body weight, permits bending and rotation, and protects nerve structures that travel toward the lower body.
Quick Facts About Lumbar Spine
Category
Spinal anatomy
Used for
Lower-back movement and support
Common confusion
The lumbar spine is not the entire lower back
Also called
Lower Back Spine, Lumbar region
Often discussed with
Back Pain Treatment
Key Takeaways About Lumbar Spine
- The lumbar spine sits between the rib-bearing spine and pelvis.
- Discs and joints help distribute movement and load.
- Lower-back pain does not always come from the lumbar spine.
How Lumbar Spine Works

Lumbar spine function depends on coordinated movement among vertebrae, discs, facet joints, muscles, and ligaments. The vertebrae provide a stable column, while the discs help absorb changing loads during walking, lifting, and sitting. Facet joints guide movement and limit excessive motion.
Related glossary terms: Cervical Spine, Intervertebral Disc, Facet Joint.
The lumbar spine also forms a passage for nerve structures that connect the spinal cord with the pelvis and legs. A clinical evaluation may consider posture, range of motion, muscle tension, joint movement, and symptom patterns. The sacroiliac joint can also influence how forces move between the spine and pelvis. The intervertebral disc may contribute to symptoms when its shape or condition affects nearby tissues.

From the Arrowhead Clinic Chiropractor Garden City team
When we assess the lumbar spine, we consider movement, posture, muscle activity, and the pattern of reported symptoms. We also examine how the lower back works with the pelvis and nearby joints. That broader check helps us select an appropriate approach within Back Pain Treatment.
Lumbar Spine in Practice: A Real-World Example
A person who feels lower-back discomfort after lifting may have limited lumbar movement or tension in nearby muscles. A clinical assessment can examine how the lumbar spine, pelvis, and hips share movement during simple tasks.
Related Services
Related Terms
Cervical Spine
Cervical Spine is the upper section of the spinal column that supports the head and protects…
Intervertebral Disc
An intervertebral disc is a flexible cushion between neighboring spinal bones called vertebrae. Each disc has…
Facet Joint
A facet joint is a small paired joint at the back of the spine that connects…
Sacroiliac Joint
Sacroiliac Joint is the connection between the sacrum at the base of the spine and the…
Arrowhead Clinic Chiropractor Garden City
Have Questions About Lumbar Spine?
Contact Arrowhead Clinic Chiropractor Garden City for practical guidance on Lumbar Spine and related chiropractor work in Garden City.
