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Anterior longitudinal ligament

Other Terms: Ligamentum longitudinale anterius, Ligament longitudinal antérieur

Parts

None

Group

Vertebral ligaments

Description

A strong band of variable thickness and width that spans the entire length of the mobile vertebral column, from the basioccipital bone to the anterior aspect of the sacral promontory. From superficial to deep its ligamentous fibers span varying lengths -- the deepest fibers are short intersegmental fibers, the intermediate fibers span two to three vertebrae, and the superficial fibers span three to four vertebrae. It is thick, yet narrow, over the vertebral bodies where it is loosely bound to the periosteum. At the levels of the intervertebral disc, it widens and the fibers strongly bind to the fibrocartilage disc, the hyaline cartilage vertebral end plates, and the margins of the vertebrae.

Function

Limit extension of the vertebral column and reinforce the intervertebral disc.

Latin

Ligamentum longitudinale anterius

French

Ligament longitudinal antérieur

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