anterior atlantoaxial ligament anterior atlantoaxial ligament the anterior atlantoaxial ligament is a strong membrane, fixed, above, to the lower border of the anterior arch of the atlas; below, to the front of the body of the axis. anterior atlantoaxial ligamentmedian sagittal section through the occipital bone and first three cervical vertebraeanterior atlantooccipital membrane and atlantoaxial ligament.detailsidentifierslatinligamentum atlantoaxialis anteriusanatomical terminology it is strengthened in the middle line by a rounded cord, which connects the tubercle on the anterior arch of the atlas to the body of the axis, and is a continuation upward of the anterior longitudinal ligament. anatomy anatomical relations the anterior atlantoaxial ligament is situated anterior to the longus capitis muscle.