The posterior atlantoaxial ligament is a broad, thin membrane attached, above, to the lower border of the posterior arch of the atlas; below, to the upper edges of the laminæ of the axis.

It supplies the place of the ligamenta flava, and is in relation, behind, with the obliqui capitis inferiores.

This article incorporates text in the public domain from page 293 of the 20th edition of Gray's Anatomy (1918)

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