We have three basic types of muscle fibers in our body. Striated or skeletal muscles, smooth or non striated, and cardiac which is striated with a twist. Each of these muscles have a specific task in keeping the body functioning. The skeletal muscles are voluntary which means that they are under the control of our conscious will. We need these muscles to do our everyday work. The bigger they are the more work they are capable of doing. Our digestion, blood pressure, and other important bodily functions are too complicated for us to handle with our conscious will so the body has a special place for these directions to come from. This is the medulla of the brain. We can control our body temperature, digest our food without even worrying about it. The cardiac muscle is so special it is only found in the heart. This organ keeps beating 24/7. It is built in such a way that it never fatigues. Of course it is not under our voluntary control. So it is important to understand that these muscles have a purpose.
2006-08-04 05:32:03
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answer #1
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answered by ATP-Man 7
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As well as things like your heart and digestive system being controlled involuntarily, a reflex response also controls muscles.
For example, if you put your hand on a boiling saucepan, receptors in your skin would send a message to your spinal cord which would send a message to the muscles in your arm and move it away from the heat. You cannot control this reaction, other reactions must have a message sent all the way to the brain and back before the response occurs. This takes longer and means that your hand would be touching the boiling pan for longer and you would end up being more burnt.
2006-08-04 04:42:47
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answer #2
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answered by Anonymous
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Some functions must work before you know how to use your muscles (babies wouldn't be trained to digest food), some things must work while unconcious (thus a hybrid voluntary/involuntary like the diaphragm), and some functions must occur so often and regularly that we wouldn't be able to use concious thought for anything else if we had to keep thinking about them (e.g. heart).
2006-08-04 04:15:09
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answer #3
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answered by Steve W 3
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2016-12-14 19:19:23
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answer #4
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answered by mayer 4
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You could also forget how to digest your food and starve to death.
If you ever fell asleep, you die of suffocation because you weren't breathing.
However, premature ejaculation would be a thing of the past!! ... And no need for birth control!!! Even better... you could reach climax on demand!! At any time!! MAybe this isn't such a bad idea afterall!! ;-)
2006-08-04 04:38:47
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answer #5
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answered by hyperhealer3 4
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You don't really want to have to think about making your heart beat, do you? If it were a voluntary control, then you'd have to think about doing it all the time, and if you didn't, you'd die. The same goes for breathing (although that one's slightly more voluntary), and other bodily functions.
2006-08-04 08:11:56
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answer #6
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answered by Qchan05 5
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hehehe... like "Common_Sense" said.. also i think that if we controlled those muscles we'll get tired,,, u can't keep moving your arms... besides when u sleep u don't move your voluntary muscles...
2006-08-04 04:12:21
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answer #7
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answered by Anonymous
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What if you became distracted by something and forget to
make your heart beat ?
2006-08-04 04:07:47
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answer #8
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answered by Anonymous
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Not asfixiating for example. yai!
2006-08-04 08:02:20
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answer #9
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answered by flammable 5
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