Synonyms: Ligamentum cruciatum atlantis, cruciform ligament of atlas
The cruciform ligament of the atlas is a cross-shaped ligament that is composed of a transverse and a longitudinal component.
Anatomy
The transverse component, the transverse ligament of the atlas, extends between the two lateral masses of the atlas and holds the tip of the dens in its articular facet on the atlas. The longitudinal component consists of a superior and an inferior longitudinal fasciculus and connects the anterior margin of the foramen magnum with the body of the axis.
Function
Along with the alar ligaments, the cruciform ligament of the atlas is the most important ligament for stability at the craniocervical junction[^1].
Figure
