Fig. 1From: Future of low back pain: unravelling IVD components and MSCs’ potentialLine drawing of a spinal segment with an IVD between two vertebral bodies (left) and a cutout portion representing a normal IVD (right). Observe the vertebral EP sandwiched between discs, the centered NP and the AF surrounding it. The colors altered on the right IVD were only for differentiation purposes, inspired and approved by (Raj 2008)Back to article page