Foot anatomy, computer artwork. Muscles are red, tendons and ligaments are white, and bones are cream. At lower right is the calcaneous (heel bone), which is attached to the calf muscle by the Achilles tendon, the largest tendon in the body. Tendons and ligaments are bands of inelastic fibrous tissue. Tendons connect bones to muscle, while ligaments connect bones to other bones. The toes consist of two phalanges bones. The phalanges are joined to the metatarsal bones, which are in the mid-foot. The foot tendons, which run from the muscles at the front of the leg to the tip of the toes, extend and flex the toes.