Wednesday, January 22, 2025
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How the heart actually pumps blood – Edmond Hui

TED-Ed



TED-Ed

View full lesson: http://ed.ted.com/lessons/how-the-heart-actually-pumps-blood-edmond-hui

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 taking a closer look at the heart’s highly efficient ventricle system.

Lesson by Edmond Hui, animation by Anton Bogaty.

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30 thoughts on “How the heart actually pumps blood – Edmond Hui”

  10. Honestly this was not really much of an explanation. All you said was the heart contracts which causes the water to be pushed out. But it was however a good little heart explanation.

  13. I watched this to study the direction of the blood and remember what’s oxygenated and what isn’t… that whole diagram is false. Spent 10 minutes rewatching, using it to study for an exam.

  14. ν•œκ΅­μ–΄ λ²ˆμ—­ν•˜μ‹ λΆ„μ˜ λ…Έκ³ λŠ” μ•Œκ² μ§€λ§Œ λ„ˆλ¬΄ μ§μ—­μœΌλ‘œ λ²ˆμ—­ν•΄μ„œ λ­” 말인지 μ•Œμˆ˜κ°€ μ—†λ„€μš”. ν•œμ˜ν†΅μ—­μžλ£Œλ‘œ μ“ΈκΉŒν•΄μ„œ ν•œκ΅­λ§ μˆ˜μ •ν•˜λ‹€ ν¬κΈ°ν–ˆμŠ΅λ‹ˆλ‹€.

  17. I like the idea of cutting off the atria and filling up the ventricles with water and squeezing it to show how the blood flows….I guess that is the major point. I will try that. Thanks.

  18. At 1:43, the right side of the heart should be recieving the deoxygenated blood and the left side should be pumping the oxygenated blood. It's ironic that he talks about potential confusion immediately after showing something that is incorrect, or at least could have been visualized in a better way.

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