How does a cartilage help a joint move smoothly?

Cartilage is a flexible, rubbery tissue that covers the ends of bones at joints, providing a smooth, protective surface for movement. It reduces friction between the bones during motion, allowing for fluid and pain-free articulation. Additionally, cartilage serves as a shock absorber, distributing weight and pressure evenly across the joint, which further enhances mobility and prevents wear and tear on the bones.