Calcaneus
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| Bone: Calcaneus | |
|---|---|
| Subtalar Joint | |
 | |
| Left calcaneus, lateral surface. | |
| Latin | Os calcis |
| Gray's | subject #63 263 |
| MeSH | Calcaneus |
The calcaneus is the largest bone of the human foot. The skeleton of the human foot is made up of three groups of bones: the tarsus, the metatarsus and the phalanges. The tarsal bones consist of the calcaneus, talus, cuboid, navicular, and the first, second, and third cuneiforms. The calcaneus forms part of the tarsi and constitutes the heel of the human foot or the point of an animal's hock . It is also known as the heel bone.
Human
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.
Calcaneal tuberosity
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.
Horse
The calcaneus has two articulations, being part of the Proximal intertarsal joint and the Talocalcaneal joint. As in humans it is the insertion of the gastrocnemius and superficial digital flexor tendons. The point of the calcaneus is covered by the calcanean bursa.
See also
- Bone terminology
- Calcaneal fracture, also known as Lover's fracture and Don Juan fracture
- Terms for anatomical location
Additional images
 Left calcaneus, superior surface |
 Left calcaneus, inferior surface |
 Left calcaneus, medial surface |
 Bones of the right foot. Dorsal surface. |
 Bones of the right foot. Plantar surface. |
 Skeleton of foot. Medial aspect. |
 Skeleton of foot. Lateral aspect. |
 Capsule of left talocrura articulation (distended). Lateral aspect. |
 Coronal section through right talocrural and talocalcaneal joints. |
 Talocalcaneal and talocalcaneonavicular articulations exposed from above by removing the talus. |
 Oblique section of left intertarsal and tarsometatarsal articulations, showing the synovial cavities. |
Calcaneus Fracture.jpg
Calcaneus fracture X-ray |
External links
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de:Calcaneuseo:Kalkaneo fr:Calcanéum nl:Hielbeen ja:踵骨sv:Hälben uk:П'яткова кістка
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
