What is the role of cartilage in the joints?

The role of cartilage in the joints is primarily to provide a smooth surface for joint movement. Cartilage is a flexible and resilient connective tissue that covers the ends of bones at joints, reducing friction during movement and allowing for smooth, gliding motions. This smooth surface is crucial for preventing wear and tear on the bones, which can lead to conditions like osteoarthritis if compromised.

While cartilage does contribute somewhat to the overall stability of the joint by providing cushioning and helping distribute loads during activities, its primary function is to ensure that movements are conducted with minimal friction and resistance. This is especially important in joints that are subjected to significant movement and stress, such as the knees and hips.

Other options, such as facilitating nerve transmission or storing calcium and phosphate, are not associated with cartilage's primary functions in the musculoskeletal system. Nerve transmission primarily involves the nervous system rather than cartilage, and the storage of minerals like calcium and phosphate is a function of bone rather than cartilage.