Dr Adriaan Liebenberg My Spine Cervical | Page 28

My Spine - Cervical F G F A B E C D Figure 4.1 Image used with permission from Stryker This drawing demonstrates a cervical vertebra seen from above. (A) indicates the facet joint. (B) indicates the lamina which forms the back part of the spinal canal along with (C), the spinous process. (D) indicates the ligamen- tum flavum. (E) indicates the spinal cord and (F) indicates a nerve root in its foramen. (G) indicates the vertebral body which forms the front margin of the spinal canal and the intervertebral disc rests on top of it. Spinal stenosis occurs once there is narrowing of the canal (E) as a result of enlarged liga- ments inside the canal, enlarged facet joints (A) and when the intervertebral discs that rest on the vertebral body (G) herniates (prolapses) backwards into the canal. 28