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Extras

Video thumbnail: Science Trek D4K: Nervous System Video Short

Science Trek

D4K: Nervous System Video Short

Learn more about your body's nervous system.

D4K: Nervous System Video Short

Video thumbnail: Science Trek D4K: The Web Show:  Nervous System

Science Trek

D4K: The Web Show: Nervous System

How do your brain and your nerves control your body?

D4K: The Web Show: Nervous System

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