+A **bone** is a rigid [organ](/wiki/organ) that forms part of the [skeleton](/wiki/skeleton) of most vertebrate animals. Composed primarily of specialized [tissue](/wiki/tissue) rich in [calcium](/wiki/calcium), bones provide structure, protection, and support for the body.
+## See also
+- [Joint](/wiki/joint)
+- [Marrow](/wiki/marrow)
+- [Fracture](/wiki/fracture)
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