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The Muscular System
The muscle system is responsible for the locomotion of the human body. That is not its only function. It can also aid the body's flexibility. The muscular system contains three different types of muscle. The tissues contract to produce movement of the body. There is a total of 650 skeletal muscles of the human body and most have an identical twin on the opposite side of the body. Many muscles can be deep inside the body or part of a superficial layer. Muscles can compose up to 50% of body…
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