Posterior longitudinal ligament

The posterior longitudinal ligament (PLL) arises from the back of the axis (C2) body and travels downward and posterior to the vertebral bodies (attached loosely) and intervertebral discs (firmly attaching to the posterior annulus), attaching to the back of the sacrum. It narrows as it travels downward and also has a serrated edge.

Spinal anatomy
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Article information

rID: 36586
System: Spine
Section: Anatomy
Synonyms or Alternate Spellings:
  • Posterior longitudinal ligament (PLL)
  • Posterior longitudinal ligaments

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