What do denticulate ligaments do?

Denticulate ligaments are specialized fibrous structures that play a key role in stabilizing the spinal cord within the vertebral column. These ligaments extend from the spinal cord laterally and attach to the dura mater, which is the tough outer layer that encases the spinal cord. The primary function of the denticulate ligaments is to anchor the spinal cord in place, preventing excessive movement and providing structural support. This anchoring is essential for maintaining the position of the spinal cord, especially during activities that might cause movement within the spinal canal.

In their role, the denticulate ligaments integrate with the overall protective framework of the spinal cord, but their chief function is stability rather than direct protection from injury or formation of spinal nerves. Each of these supporting structures, such as the dura mater and spinal column, contributes to the overall safety of the spinal cord, yet the specific task of the denticulate ligaments is to secure the spinal cord laterally, ensuring it remains centered and well-anchored within the vertebral foramen.