Nucleus Pulposus and How It Helps Your Spine
What Is the Nucleus Pulposus? The nucleus pulposus is part of the intervertebral disc. It is the soft filling located in the center of the disc. PixologicStudio / Getty Images It is surrounded by a strong covering consisting of 3 concentric layers of tough fibrous tissue. The covering is called the annulus fibrosus. The intervertebral disc moves as you move. The strong outer fibers of the annulus fibrosus package the nucleus pulposus and keep it safely inside....