Articulates with ethmoid bone anteriorly and basilar part of occipital bone posteriorly. "Procoelous" vertebrae are anteriorly concave and posteriorly convex. The conus may occur anteriorly or posteriorly. From this nerves extend anteriorly and posteriorly. These cells lengthen anteriorly and posteriorly to encircle the primary fibers. The nuchal is moderate, broader posteriorly than anteriorly. They pull the scapula toward the mid-dorsal line, anteriorly, and posteriorly. Expansion also tends to happen more anteriorly than posteriorly. It draws the clavicle inferiorly as well as anteriorly. At this point, the secondary axon leaves its nucleus and passes anteriorly and medially. The uterosacral ligaments keep the body from moving inferiorly and anteriorly. It is leaf-shaped, pointed at the back (posteriorly), and wide in the front (anteriorly). An anterior positioning splint is a splint that designed to promote an anteriorly displaced disc. They have a cingulum, which is anteriorly positioned, and the cells are laterally compressed. This allows tissue from inside the abdomen to herniate anteriorly.