Diagram Spine L5s1. L1 l5 is the lower back. Click images to large view l5 s1 disc space.
In this region the curvature of the spine changes from lumbar lordosis forward curve to sacral kyphosis backward curve. Nexion of toes. The fifth lumbar spine vertebrae l5 is part of the greater lumbar region.
Functional goals following sci basic.
Sadly this also means that this segment is most commonly affected by injuries which include degeneration and especially herniation. Click images to large view l5 s1 disc space. It consists of five vertebrae known as l1 l5. This nerve root feeds the sciatic nerve and impingement has the potential to affect the lower buttocks legs and feet.