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Posterior atlanto-occipital membrane

Other Terms: Posterior atlantooccipital membrane, Membrana atlanto-occipitalis posterior, Membrana atlantooccipitalis posterior, Membrane atlantooccipitale postérieure

Parts

None

Group

Vertebral ligaments

Description

A broad, thin ligamentous sheet that connects the posterior rim of the foramen magnum to the superior border of the posterior arch of the atlas. The lateral aspects of the membrane blend with the posterior surfaces of the atlanto-occipital joint capsules. It is equivalent to the ligamentum flavum at other vertebral levels.

Function

Stabilizes the atlanto-occipital junction and prevents hyperflexion of the head on the atlas.

Latin

Membrana atlantooccipitalis posterior

French

Membrane atlantooccipitale postérieure

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