Posterior Longitudinal Ligament — FRCA Primary MCQ
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Correct answer: A — Lines the anterior surface of the vertebral canal (posterior surface of vertebral bodies)
The posterior longitudinal ligament runs along the posterior surface of the vertebral bodies (anterior wall of the vertebral canal). It is narrower than the anterior longitudinal ligament and may be insufficient to prevent posterior disc herniation. In epidural anaesthesia it forms the anterior boundary of the epidural space.
Reference: RCoA 2021 Primary FRCA Curriculum