A tendon is a rope-like piece of flexible connective tissue. Tendons create a link between your bones and muscles and allow you to move your limbs. Tendons absorb the impact of your movements and shield the muscles from harm. Your body is covered in tendons. They join your shoulder, elbow, wrist, knee, heel, and other bones to your muscles. The largest tendon in your body is the Achilles tendon, located in your heel. It joins the heel bone and the calf muscle. Tendons vary in size and shape depending on the muscle they are connected to. tendon damage. Strong, powerful movements are made possible by the wide and short tendons. To allow for sensitive movements, muscles are attached to long, thin tendons.