Lumbar Spine Anatomy and Function. Story by Anne Asher, CPT • 20y. Medically reviewed by Jennifer Steinhoff, MD. The lumbar spine includes the five vertebrae in your lower back numbered L1 to L5.

Spinal Cord Anatomy The spinal cord is a vital part of the central nervous system, along with your brain. It’s around 50 centimeters long, though the length may vary in different individuals.

The spine, or backbone, is a long column of bones that runs down the center of a person’s back. It is essential for many functions, such as movement, support, and protecting the spinal cord.

Spinal ligaments in the embryonic chick are homologous to those in the human spine. Credit: Journal of Anatomy (2025). DOI: 10.1111/joa.70006 ...

Axial MRI of the Lumbar Spine - T2 weighted image at the L4 level. On this view centered over the L4-L5 disk, one can see well the cauda equina surrounded by CSF (note that CSF is bright on ...

While wrong-site spinal surgeries are rare, the ramifications of a mistake can be devastating for patients, providers and health systems. Rochester, Minn.-based Mayo Clinic is taking systemwide action ...

Spinal Anatomy 101 . Stretching from the bottom of the brain and ending in the lower back, the spinal cord is a long, tube-like band of tightly bundled cells, nerve fibers, and blood vessels. Each of ...