Thursday, 25 July 2013

Muscular system

The muscular system is made up of tissues that work with the skeletal system to control movement of the body. Some muscles—like the ones in your arms and legs—are voluntary, meaning that you decide when to move them. Other muscles, like the ones in your stomach, heart, intestines and other organs, are involuntary. This means that they are controlled automatically by the nervous system and hormones—you often don't even realize they're at work.
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The body is made up of three types of muscle tissue: skeletal, smooth and cardiac. Each of these has the ability to contract and expand, which allows the body to move and function. .

Skeletal muscles help the body move.Smooth muscles, which are involuntary, are located inside organs, such as the stomach and intestines.Cardiac muscle is found only in the heart. Its motion is involuntary.


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