Calcaneus

The calcaneus is the large bone making up the heel of the human foot or the point of an animal's hock.

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It articulates with two other tarsal bones, the talus above and the cuboid toward the midfoot. In addition to receiving the weight of the body with each step, the calcaneus is the anchor for the plantar fascia, which supports the arch of the foot.

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The posterior-most portion of the calcaneus is the calcaneal tuberosity, a large, non-articulating process that is the insertion point for the calcaneal tendon (or Achilles tendon). In addition, this process is the origin for some of the muscles and tendons of the foot.

Bone: Bone is a type of hard endoskeletal connective tissue found in many vertebrate animals. Bones support body structures, protect internal organs, and (in conjunction with muscles) facilitate movement; are also involved with cell formation, calcium metabolism, and mineral storage. The bones of an anima...

Foot: The foot is a biological structure found in many animals that is used for locomotion. The plural of foot is feet, and this pair is one of seven mutated English plurals....

Hock: The word hock may mean:...