SPENCER SUTTON / SCIENCE PHOTO LIBRARY SPENCER SUTTON / SCIENCE PHOTO LIBRARY
Illustration of a lumbar vertebra and herniated disk (at right). The brown area in the oval represents the disc which, at the right lower corner is pressing down into the spinal nerve. At the centre, the X represents the spinal cord and at the bottom is the vertebra (in light brown).
Model release not required. Property release not required.