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Anterior Longitudinal Ligament

Continued From Above... The anterior longitudinal ligament consists of strong, dense fibers, located inside the bodies of the vertebrae. They span nearly the whole length of the spine, beginning with the second vertebrae (or axis), and extending to the sacrum. The ligament is thicker in the middle (or thoracic region). Some of the shorter fibers are separated by circular openings, which allow for the passage of blood vessels.