The lumbar spine includes the five vertebrae in your lower back numbered L1 to L5. These bones help provide mobility and stability to your back and spinal column and are an attachment point for ...

Medically reviewed by Eva Umoh Asomugha, M.D. Myelopathy refers to a cluster of symptoms that result from spinal cord ...

These five bones in your lower spine are numbered L1 through L5 ("L" stands for "lumbar"). Disks. These spongy structures between the vertebrae cushion the bones as your body moves. Ligaments.