Axial tendons connect the muscles that are located along the spinal column to vertebrae. In this manner, tendons transfer the force generated by muscles to the axial skeleton and help provide the spine its stability, but mostly, regulates its movement, including extension, rotation and flexion. Axial ligaments connect vertebrae to each other, thereby contributing to the stability of the spine. In humans, there are anterior and posterior longitudinal ligaments that cover the complete length of the spinal column. Both of these ligament subgroups attach to and support the intervertebral disc, preventing its herniation. There are also a number of ligaments which connect between single vertebrae.