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A '''joint''' is a juncture between two [[bone]]s. There are different types:

* Immovable: An example would be the bones of the [[skull]] which are separated by tough fibers of [[cartilage]]
* Movable: Generally found in the [[limb]]s

* Hinge Joints: Provide forward and backward movement, such as the [[elbow]] or the [[knee]]
* Pivot Joints: Allow rotary movement such as the turning of the [[head]] from side to side
* Ball-and-socket Joints: Allow the greatest range of movement due to the round end of one bone fitting into the socket of the other separated only be elastic cartilage. Examples would be the [[hip]] or the [[shoulder]].

===Further Classifications===

* Fibrous: Connected by collagen fibers
* Cartilaginous
* Synovial: Ease motion through the use of a lubricating liquid known as [[synovial fluid]]

===Modern Replacements===

Artificial joints has become increasingly common, particularly in hip and knee replacement as performed by [[orthopedic surgeon]]s. Metal or plastic is used to relieve pain or correct joint deformity.

== Sources ==

http://encyclopedia2.thefreedictionary.com/joint


[[Category:Anatomy]]
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