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Mainly the muscles. They send signals to the muscles to move. Your internal organs are also muscles. Things like you stomach and intestines are muscular so they involuntarily move on the brains command. Involuntarily means they move without you telling them to. Things like you fingers and legs are voluntary. Imagine that you are paralzyed from the neck down (this means your nervous system has stopped working on a certain part of your body). Your brain has lost its function to move the voluntary muscles. This does not mean your involuntary muscles stop working. If they did then you wouldn't survive because your stomach would stop doing its job and also the intestines would stop moving the food through.

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14y ago

What else can I help you with?