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15 bytes added ,  18:11, July 2, 2009
clarification of radius
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An '''arm''' is a particular upper [[limb]] appendage having varying usage and strength within the animal kingdom.  In humans it is made up of three distinct [[bone]]s:
 
An '''arm''' is a particular upper [[limb]] appendage having varying usage and strength within the animal kingdom.  In humans it is made up of three distinct [[bone]]s:
 
* Humerus:  (Upper arm)
 
* Humerus:  (Upper arm)
* Radius: (Outer bone)
+
* Radius: (Outer bone of the forearm)
 
* Ulna: (Inner bone of the forearm)
 
* Ulna: (Inner bone of the forearm)
  

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