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anterior longitudinal ligament

   Also found in: Acronyms, Wikipedia 0.26 sec.
anterior longitudinal ligament,
the broad, strong ligament attached to the ventral surfaces of the vertebral bodies. It extends from the occipital bone and the anterior tubercle of the atlas to the sacrum. Also called anterior common ligament. Compare posterior longitudinal ligament.


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When the PLE test is conducted, lumbar spinal extension is strong, leading to tension in the anterior longitudinal ligament or the fibrous ring of the intervertebral disk and relaxation in the zygapophyseal capsule, to which surrounding mechanoreceptors or nociceptors react strongly and induce lumbar pain.
The stability and strength of these vertebrae is achieved by the long anterior longitudinal ligament in front of the vertebrae and the long posterior longitudinal ligament behind (Stolov & Clowers, 1981).
[35,36] End-range extension is stabilized primarily by the anterior longitudinal ligament, the anterior aspect of the annulus fibrosus, and the zygapophyseal joints.
 
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