What connects bone to bone in the human body?

The correct answer is that ligaments connect bone to bone in the human body. Ligaments are tough, flexible bands of connective tissue that play a crucial role in stabilizing the joints by linking the ends of bones together. This connection helps to maintain the integrity of the joint and allows for a certain degree of movement while preventing excessive motion that could lead to injury.

In the context of the other options, tendons connect muscle to bone but do not link bones to one another. Cartilage is a smooth, flexible tissue that cushions joints and supports structures but does not connect bones together. Fascia is a layer of connective tissue that surrounds muscles and organs, providing support and structure but does not serve the specific purpose of connecting bones. Understanding the distinct roles of these connective tissues is essential for grasping the anatomy of the musculoskeletal system.