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To move the body and use strength to lift things.
because it is the thing that allows you to move. Without it youm would not be able to do the most simplest things!!
allows you to move.
The Muscular System supports the body and allows it to move.
A system that allows energy to move in and out but not mass.
A lever allows you to magnify the force applied to an object at the expense of distance. With a lever you can move objects many times larger than you could without one, but at a slower pace.
muscles
It allows you to move your bones.
You may be thinking of an "air foil", which also has the property of "lift" when oriented properly. See: http://en.wikipedia.org/wiki/Airfoil
The musculeskeletal system is the organ system that allows a person to move using the muscular and skeletal system.
Muscles also help to move.
it is commanded by the brain by using the muscles