Which connective tissue attaches bone to bone?

Ligaments are specialized connective tissues that play a critical role in the musculoskeletal system by connecting bones to other bones at a joint. They are composed of dense, fibrous connective tissue that provides strength and flexibility, allowing for both stability and movement of the joints while controlling the range of motion. This characteristic makes ligaments essential for maintaining the structural integrity of joints, preventing excessive movement that could lead to injuries.

In contrast, cartilage serves as a cushioning material between bones, providing a smooth surface that facilitates joint movement rather than directly connecting bones. Tendons, on the other hand, attach muscles to bones, enabling movement through muscle contraction. Joint capsules are structures that encase joints, providing protection and stability but do not connect bones directly. Thus, ligaments are the correct choice for the tissue responsible for attaching bone to bone.