What Is the Lumbar Spine?
The lumbar spine is the lower section of the vertebral column, located between the thoracic spine and the pelvis. It contains five movable vertebrae that support the trunk, guide lower-back movement, and help protect nerves traveling toward the legs. Muscles, discs, joints, and connective tissues work with this region during daily activities.
Quick Facts About Lumbar Spine
Category
Lower spinal region
Used for
Lower-back movement and support
Common confusion
Not the entire spine
Also called
Lower back spine, Lower back
Often discussed with
Back Pain Treatment, Chiropractic Adjustment
Key Takeaways About Lumbar Spine
- It connects the mid-back region with the pelvis.
- Disc, joint, muscle, and nerve findings can affect lower-back symptoms.
- The lumbar spine is not the same as the entire spinal column.
How Lumbar Spine Works
The lumbar spine supports the trunk while allowing bending, extension, and controlled rotation. Vertebrae form the bony framework, while discs help distribute pressure between adjacent bones. Facet joints guide movement, and surrounding muscles help stabilize the area during walking, sitting, and lifting.
Related glossary terms: Thoracic Spine, Sacroiliac Joint, Facet Joint.
Clinicians assess this region by observing posture and movement, checking range of motion, and considering nearby structures. A finding in the lumbar spine may relate to a disc, facet joint, muscle, or nerve. The pelvis and sacroiliac joint can also influence how lower-back movement appears during an examination.
From the Arrowhead Clinic Chiropractor Savannah team
When we assess the lumbar spine during Back Pain Treatment, we review movement, posture, and the relationship between the lower back and pelvis. Our team also considers whether muscle tension, joint motion, or nerve-related findings may contribute to the reported symptoms.
Lumbar Spine in Practice: A Real-World Example
A person with lower-back discomfort after lifting may have limited lumbar spine motion during bending. The examination can also review nearby hip and pelvic movement to understand the pattern more clearly.
Related Services
Related Terms
Thoracic Spine
Thoracic Spine is the middle section of the spinal column, extending from the base of the…
Sacroiliac Joint
Sacroiliac Joint is the connection between the sacrum at the base of the spine and the…
Facet Joint
Facet Joint is a small synovial joint at the back of the spine that connects neighboring…
Nerve Root
A nerve root is the short section of a spinal nerve that leaves the spinal cord…
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