Fibrous ring of the intervertebral disc

The fibrous ring is part of the so-called intervertebral disc that lies between the cervical vertebrae. It contains an important element, the nucleus pulposus. If the fibrous ring cracks, the nucleus pulposus will move excessively and compress the nearby ligaments and nearby terminations, causing pain. It is hard and elastic, fiber is grouped in lamellae, in which the direction is determined by the traction to which it is subjected, thus, will be vertical for extension and flexion, concentric for rotation and oblique for complex movements . Over time this ring loses its elasticity.

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