How the heart works
Chapter 1
The four-chambered engine
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Chapter 2
The spark of life
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Chapter 3
Mapping the flow
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Chapter 4
Hearts under pressure
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YOUR GOAL
Master of How the heart works
Ch 3 · Mapping the flow
Fun Fact
Ancient heart ideas: Ancient Egyptians believed the heart, not the brain, was the center of human intelligence, memory, and emotion.
Glossary
circulation (noun)
The movement of blood through the vessels of the body induced by the pumping action of the heart. In 1628, physician William Harvey proved that blood flows continuously through this closed loop.
The movement of blood through the vessels of the body induced by the pumping action of the heart. In 1628, physician William Harvey proved that blood flows continuously through this closed loop.
Quiz
What did the ancient Greek physician Galen incorrectly believe about how blood behaved?
Quiz
Which microscopic blood vessels, discovered by Marcello Malpighi in 1661, finally connected arteries to veins?
Quiz
Which ancient civilization preserved the heart during mummification because they believed it held the soul?
Quiz
In what year did William Harvey publish his groundbreaking book proving blood circulates in a loop?
Quiz
What major medical hurdle did early heart transplant surgeons have to overcome to prevent organ rejection?
Quiz
Where did surgeon Christiaan Barnard perform the first successful human heart transplant in 1967?