also cal·ca·ne·um (-nē-əm)n., pl., -ne·i (-nē-ī'), also -ne·a (-nē-ə).
The quadrangular bone at the back of the tarsus. Also called heel bone.
[Late Latin calcāneus, heel, from Latin calcāneum, from calx, calc-.]
calcaneal cal·ca'ne·al adj.On this page
American Heritage Dictionary:
cal·ca·ne·us |
also cal·ca·ne·um (-nē-əm)[Late Latin calcāneus, heel, from Latin calcāneum, from calx, calc-.]
calcaneal cal·ca'ne·al adj.|
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Oxford Dictionary of Sports Science & Medicine:
calcaneus |
The large ankle bone that projects from the heel. It forms part of the tarsus, articulating with the talus and cuboid bones. The Achilles tendon attaches onto the calcaneus.
Saunders Veterinary Dictionary:
calcaneal |
Arising from or pertaining to the calcaneus.
Random House Word Menu:
categories related to 'calcaneus' |
Wikipedia on Answers.com:
Calcaneus |
| Bone: Calcaneus | |
|---|---|
| Subtalar Joint | |
| Left calcaneus, lateral surface. | |
| Latin | Os calcis |
| Gray's | subject #63 263 |
| MeSH | Calcaneus |
In humans, the calcaneus (from the Latin calcaneum, meaning heel[1]) or heel bone is a bone of the tarsus of the foot which constitute the heel. In some other animals, it is the point of the hock.
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Contents
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In humans, the calcaneus is the largest of the tarsal bones and the largest bone of the foot. In it, several important structures can be distinguished:[2]
The posterior half of the bone is the tuber calcanei. On its lower edge on either sides are its lateral and medial processes (serving as the origins of the abductor hallucis and abductor digit minimi). The Achilles tendon is inserted into a roughened area on its superior side, the cuboid bone articulates with its anterior side, and on its superior side are three articular surfaces for the articulation with the talus bone. Between these superior articulations and the equivalents on the talus is the tarsal sinus (a canal occupied by the interosseous talocalcaneal ligament). On the medial side of the bone, below the middle talar facet, is the sustentaculum tali (which serves for the attachment of several other ligaments). On the lateral side is commonly a tubercle called the peroneal trochlea, under which is a groove for the tendon of the peroneus longus. [2]
In the calcaneus, an ossification center is developed during the 4-7th intrauterine month. [2]
With normal axial alignment in the hindfoot, the axes of the tibia and calcaneus lie on a vertical line (pes rectus). If the calcaneal axis is turned medially the foot is in an everted position (pes valgus), and if it is turned laterally the foot is in an inverted position (pes varus). [3]
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.
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![]() | American Heritage Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
![]() | Oxford Dictionary of Sports Science & Medicine. The Oxford Dictionary of Sports Science & Medicine. Copyright © Michael Kent 1998, 2006, 2007. All rights reserved. Read more | |
![]() | Saunders Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more | |
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![]() | Random House Word Menu. © 2010 Write Brothers Inc. Word Menu is a registered trademark of the Estate of Stephen Glazier. Write Brothers Inc. All rights reserved. Read more |
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![]() | Wikipedia on Answers.com. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article Calcaneus. Read more |