The human muscular system consists of more than 600 muscles, which act done in groups. Muscles are, in turn and fibers in the cells. Muscles are what you can do just about anything - to help the march of heavy lifting to pump blood through the body. Muscles are either voluntary or involuntary as distinguished. Involuntary muscles in the body to function automatically, without you able to control them. Voluntary muscles are those that are under your control.

All muscles are prepared from the sa...
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