What type of joint is primarily supported by cartilage?

Cartilage plays a crucial role in various types of joints, providing support, cushioning, and facilitating smooth movement between bones. In the case of ball-and-socket joints, such as the hip and shoulder, the spherical end of one bone fits into the cup-shaped socket of another. Here, cartilage lines the surfaces where the bones meet, reducing friction and absorbing shock during movement.

Similarly, hinge joints like the elbows and knees enable bending and straightening motions, with cartilage again lining the joint surfaces to protect the bones and ensure smooth articulation. Pivot joints, such as the joint between the first and second cervical vertebrae, allow for rotation around a single axis. These joints also rely on cartilage to maintain congruity and minimize wear during rotational movements.

Given that cartilage is an essential component in supporting the structure and function of all these joint types, it is accurate to state that all the aforementioned joints—ball-and-socket, hinge, and pivot—are primarily supported by cartilage.