The musculoskeletal system is made up of bones, muscles, and joints, as well as cartilage, tendons, ligaments, and connective tissue. This system provides structure and support to your body while also allowing you to move around. The components of the musculoskeletal system develop and change over time. Bones, muscles, and joints can be damaged by injuries and infections. Joints are the points where two or more bones meet. Cartilage – links one bone to another or offers cushioning inside joints (such as the knee joint) (as in cartilaginous joints). Tendons (a tough connective tissue) on each side of a joint link to muscles that govern the joint's movement. Tendons connect muscles to bone and are formed of strong fibrous connective tissue. They resemble the muscle's long, thin ends. The Achilles tendon connects the calf muscle to the heel bone and is the biggest tendon in the body