The Curious Crew gets pumped exploring the circulatory system! The Curious Crew gets pumped exploring the circulatory system! Dr. Rob uses balloon valves and tennis balls to explain how the heart ...

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Your circulatory system works all day, every day, to pump oxygen throughout your body. There are cardiovascular conditions that can impact this system. Your circulatory system, also known as your ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. There's perhaps no element of the body that captures our imagination more than the heart. We link it ...