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Glossary

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

A person holds a spine and pelvis model beside a desk with a blurred computer monitor in the background

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.

Two people review a laptop spine diagram while one holds a vertebra model and points with a pen

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 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.

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 Garden City, GA, United States about your specific condition before making care decisions. Individual results vary.

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