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Watch this movie about the muscular system.

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Watch this movie about your nervous system, starring your brain.

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Even before you eat, when you smell a tasty food, see it, or think about it, digestion begins. Find out how the digestive system works, from start to finish, in this video!

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Larger text size Large text size Regular text size Even before you eat, when you smell a tasty food, see it, or think about it, digestion begins. Find out how the digestive system works, from start to finish, in this video! ;

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If you've ever wondered how your heart works, this movie has the answer. And special thanks to the Fred J. Brotherton Charitable Foundation for supporting this adventure!

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Larger text size Large text size Regular text size If you've ever wondered how your heart works, this movie has the answer. And special thanks to the Fred J. Brotherton Charitable Foundation for supporting this adventure!

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Watch this movie about the respiratory system, the system that enables you to breathe.