Exploring the Heart - The Circulatory System!
Published 2014-02-03
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VIDEO CHAPTERS
Introducing the red blood cell - 00:00:05
What does the red blood cell do? - 00:00:21
The circulatory system - 00:00:30
How does blood move through your body? 00:01:13
How can you feel your heart move? 00:01:33
What is a heartbeat? 00:01:44
What happens when your heart beats? 00:01:54
Oxygen and the lungs - 00:03:17