The lumbar vertebrae are the largest movable bones of the backbone. Their large size and bone strength is necessary because these vertebrae support more weight than the upper two segments of the ...

The first "pages" of the Allen Spinal Cord Atlas, backed by software billionaire Paul Allen and an unusual consortium of contributors, were made available on the Internet for an official unveiling.

Medically reviewed by Jennifer Steinhoff, MD Key Takeaways The lumbar spine includes five vertebrae that help with mobility ...

Your spinal cord needs a steady blood supply to deliver oxygen and nutrients to the tissues. This blood helps the spinal cord cells send nerve impulses to the rest of your body. The impulses are ...