Main Page | See live article | Alphabetical index A Tendon or Sinew is a tough band of fibrous connective tissue, attached on one end to a muscle and on the other to a bone. They are similar in everything except location to ligaments. The Achilles tendon is a particularly large tendon connecting the heel to the muscles of the calf. It is so named because the mythic hero Achilles could only be injured at this spot. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.