What type of connective tissue protects bones at joint surfaces?

Cartilage is a specialized type of connective tissue that serves several important functions in the body, particularly at joint surfaces. Its primary role is to provide a smooth, lubricated surface for the movement of bones at joints, which helps reduce friction and absorb shock during physical activity. This cushioning effect is vital for maintaining the integrity and functionality of joints, allowing for smoother and more efficient movement.

There are different types of cartilage, with hyaline cartilage being the most prevalent at synovial joints. This specific type of cartilage not only protects bones from grinding against each other but also plays a role in joint stability and the distribution of load across the joint surfaces during movement. Thus, its structure and properties are essential for maintaining healthy joint function.

In contrast, adipose tissue primarily serves as a means of energy storage and insulation rather than joint protection. Tendons attach muscles to bones, facilitating movement but do not contribute to the protection of joint surfaces. Ligaments connect bones to other bones and help stabilize joints but are different from cartilage in function and structure. Hence, the protective role of cartilage at joint surfaces makes it the correct answer.