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Our Wonderful Body: The Heart and Its Work

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A young boy learns about his heart through the step-by-step construction of a simple circulatory system. He learns how his heart pumps, what blood and blood vessels do, how they do it, and some of the ways to help his heart stay healthy.
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Genre: Documentaire

Jeter:

Équipage:

Pays: United States of America

Durée: 10 minutes

Qualité: HD

Libération: 1968

imdb rating 7

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