What role do ligaments play in spine stability?

Ligaments play a crucial role in spine stability by connecting bones to bones. This attachment function is essential for maintaining the structural integrity of the spine. Ligaments are composed of dense connective tissue that provides strength and stiffness, allowing them to resist excessive movement between vertebrae. By limiting the range of motion in the spinal segments, ligaments help prevent injuries that could result from excessive bending or twisting.

The stability provided by ligaments is vital for supporting the overall function of the spine, enabling it to bear weight while maintaining posture and protecting the spinal cord. In contrast, the other roles mentioned in the choices pertain to different structures or functions within the spine and do not accurately describe the primary function of ligaments in terms of stability.