Which structure connects bone to bone in the human body?

The structure that connects bone to bone in the human body is a ligament. Ligaments are fibrous connective tissues that provide stability and support to joints by holding the bones together. They are essential for maintaining proper alignment and function of the skeletal system, allowing for controlled movement within the range of motion at joints while preventing excessive motion that could lead to injury.

Tendons, in contrast, connect muscles to bones, facilitating movement. Fascia is a layer of connective tissue that surrounds muscles and organs, providing structural support, but it does not connect bones directly. Cartilage is a flexible connective tissue that provides cushioning at joints and supports certain structures in the body, but it is not responsible for directly connecting bones to one another. Therefore, recognizing the specific role of ligaments in connecting bones highlights their importance in the skeletal system.