What is the primary function of the interspinous ligaments?

The primary function of the interspinous ligaments is to limit flexion and rotation of the spine. These ligaments are located between the spinous processes of adjacent vertebrae, running anterior to posterior. They provide stability to the spine by restricting excessive motion, particularly in the flexion and rotational planes, which helps to prevent injury and maintain spinal integrity during movement.

By limiting flexion, the interspinous ligaments help preserve the natural curvature and alignment of the spine, contributing to overall spinal health. This function is particularly important in activities that involve bending or twisting, where the risk of injury or instability is heightened. Thus, the interspinous ligaments play a crucial role in protecting the spinal cord and surrounding structures by preventing hypermobility.