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Your Heart & Circulatory System for Teens
The heart and circulatory system (also called the cardiovascular system) make up the network that delivers blood to the body's tissues.
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Brain and Nervous System for Teens
If the brain is a central computer that controls all the functions of the body, then the nervous system is like a network that relays messages back and forth to different parts of the body. Find out how they work in this Body Basics article.
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How Does the Muscular System Work? (Video) for Kids
Watch this movie about the muscular system.
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Does My Toddler Have a Language Delay? for Parents
Find out what the experts have to say.
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How Does the Digestive System Work? (Video) for Kids
Watch this movie about your digestive system, the system that handles the food you eat.
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What Does Contagious Mean? for Kids
There's a good reason your parent tells you to cover your mouth when you sneeze or cough!
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What Does Amputate Mean? for Kids
To amputate something is to remove something by cutting.
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How Does Hair Work? (Video) for Kids
It's almost everywhere on your body, but what is hair, exactly? Chloe & the Nurb explain it all in this How the Body Works movie!
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What Does Heredity Mean? for Kids
If people say you look like your parents, they're probably talking about heredity.
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What Does Alignment Mean? for Kids
Alignment means to bring into line.