How the heart actually pumps blood - Edmond Hui

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How the heart actually pumps blood - Edmond Hui

TED-Ed Lesson: For most of history, scientists weren’t quite sure why our hearts were beating or even what purpose they served. Eventually, we realized that these thumping organs serve the vital task of pumping clean blood throughout the body. But how? Edmond Hui investigates how it all works by…
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TED Ed

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