Science Trek

The Heart: Blood Basics

Special | 6m 43s

The heart’s job is to pump blood, so it’s important to know more about blood. Blood does more than just carry oxygen to your cells. The body’s circulatory system keeps you warm, carries away waste and helps you stay healthy. There is more to blood than you think.

Aired: 02/01/18

Rating: TV-G

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Funding is provided by the Laura Moore Cunningham Foundation, the Idaho National Laboratory and Walmart and the Walmart Foundation