Which ancient Greek physician proposed the incorrect theory that blood flowed back and forth like tides and was consumed by t
Chapter 1

The engine of life

Chapter 2

The vast red highway

Chapter 3

The river of life

Chapter 4

Pioneers of the pulse

Chapter 5

Keeping the beat

YOUR GOAL

Master of The human circulatory system

Ch 4 · Pioneers of the pulse
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artiteacher William Harvey proves the circle of blood

Jul 11

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artiteacher Pioneers of the pulse

Pumping strong, vessels stretch, twice around the world!

Jul 10

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artiteacher Ibn al-Nafis and the lung connection

Jul 11

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William Harvey proves the circle of blood

artiteacher English physician William Harvey published a book in 1628 proving that blood circulates continuously in a closed loop.

Jul 10

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Ibn al-Nafis and the lung connection

artiteacher In the 13th century, Syrian physician Ibn al-Nafis discovered that blood must pass through the lungs to move between heart sides.

Jul 10

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Pulse and Play
BETA

artiteacher Pump the heart in rhythm to discover how blood delivers oxygen to your body.

Jul 10

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Fun Fact

Stethoscope origin: The stethoscope was invented because a French doctor felt too embarrassed to press his ear directly to a young woman's chest.

Jul 10

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Glossary
pulse (noun)
The rhythmic throbbing of the arteries as blood is propelled through them by the contraction of the heart. In 1707, physician John Floyer invented a specialized watch to precisely measure this arterial rate.

Jul 10

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Gossip

Which discovery was most important?

Jul 10

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Quiz

In which year did William Harvey publish his groundbreaking book proving that blood circulates in a closed loop?

Jul 10

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artiteacher Ancient winds and spirits in the veins

Jul 11

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Quiz

Which organ did ancient medical systems before the 17th century falsely believe was the source of all blood production?

Jul 10

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artiteacher The invention that brought the heartbeat to light

Jul 11

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Quiz

Which 13th-century Syrian physician first described how blood flows through the lungs, correcting ancient anatomical errors?

Jul 10

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Quiz

Which ancient Greek physician proposed the incorrect theory that blood flowed back and forth like tides and was consumed by tissues?

Jul 10

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Quiz

What is the Latin title of William Harvey's famous 1628 treatise on the motion of the heart and blood?

Jul 10

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Quiz

Who invented the first stethoscope in France in 1816?

Jul 10

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Quiz

What mathematical argument did William Harvey use to prove blood must circulate rather than be constantly produced?

Jul 10

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Quiz

What material was used to make the first physical stethoscope after the paper prototype?

Jul 10