What is a Lumbar Spine X-ray? It is a plain X-ray of the lower back, specifically of the five lumbar vertebrae that make up the lower (lumbar) spine, the sacrum and coccyx - which are the back part of ...

The lumbar spine includes five vertebrae that help with mobility and stability. Lumbar vertebrae are larger because they carry the load from your head down to the lower spine. The lumbar spine has a ...

The lumbosacral joint, also called L5-S1, is a term used to describe a part of the spine. L5-S1 is the exact spot where the lumbar spine ends and the sacral spine begins. The lumbosacral joint ...