Which of the following best describes the primary role of facet joints?

The primary role of facet joints, which are the small joints located between the vertebrae in the spine, is to allow movement between these adjacent vertebrae. They play a crucial role in enabling various types of spinal motion, such as bending and twisting. This movement is essential for maintaining flexibility and mobility throughout the spine.

Facet joints help guide and limit the movement of the vertebral column, ensuring that while the spine remains mobile, it also provides necessary support and stability during movement. Their orientation and structure allow for different ranges of movement in different segments of the spine, contributing to the overall function of the spinal column in everyday activities.

In contrast, the other options do not accurately capture the primary function of facet joints. While spinal stability and movement are interconnected, the most direct description of facet joint function is their role in enabling movement between the vertebrae.