Figure 1.

Sectional anatomy of lumbar spine in the mid-sagittal plane. (A) Components including the vertebral body (VB), intervertebral disc (IVD), and the interface between the two, discovertebral junction (DVJ), are shown. Vasculature is also shown; (B) close-up schematic of the DVJ, showing components of the IVD including annulus fibrosus (AF) and nucleus pulposus (NP), DVJ including uncalcified cartilaginous endplate (ucCEP), calcified cartilaginous endplate (cCEP), and bony vertebral endplate (VEP).