What is the definition of a joint?

The definition of a joint refers to the anatomical structure where two or more bones meet, allowing for movement and providing stability to the skeletal system. Joints are critical to human anatomy, facilitating a range of movements depending on their types, such as hinge joints (like the knee) allowing for flexion and extension, or ball-and-socket joints (like the hip) allowing for rotational movement.

While other options describe components associated with the musculoskeletal system, they do not define a joint itself. For example, the support provided by muscles is essential but does not constitute the joint; the fibrous tissue around a bone pertains to structures like ligaments or capsules, which provide support and stability but are not joints; and the area where tendons attach to muscles relates to muscle function and movement but does not encapsulate the definition of a joint. The essence of a joint lies specifically in its role as the connection point between bones.