In Greek mythology, Achilles was an invulnerable warrior-until he hit an arrow in the heel. So the English name of Achilles tendon is Achilles Tendon. Achilles heel Achilles tendon is the thick tendon behind the heel. The Achilles tendon is connected between the calf muscle (gastrocnemius muscle) and the heel bone. It is about 15 cm long and is the longest and strongest tendon in the human body. Even when standing normally, the muscles on the lower leg will contract to maintain the normal posture of the ankle so that the person will not fall down. At this time, the Achilles tendon will also be strongly pulled. When the gastrocnemius muscle contracts, the muscle contracts and the Achilles tendon pulls Read More …