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Physical Education


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Joints


As the human body has over 200 different bones, they need to be joined  

together to form the skeleton. The bones are joined together by joints, which

 allow them to move.

 

The synovial joint


Some joints within the body contain a fluid called, synovial fluid. This fluid 

helps to reduce the friction between two different bones. The fluid is aided

by cartilage, which surrounds the ends of the bones preventing direct

contact between the two bones. Without these mechanisms the bone 

would eventually wear away causing a lot of pain.


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