For hundreds of years, the claim of the 2nd century Greek doctor Galen, remained unchallenged. Galen believed that the blood is produced in the liver. The produced blood then would be filtered through tiny pores in the heart. But was it the right one? No, it wasn’t. We know better.
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But who really discovered how the heart actually works? The discovery of the heart’s true anatomy is commonly credited to the English physician William Harvey, but before him was someone who correctly explained how the heart pumps blood and did so way before the arrival of modern medicine.
Check out who this person is over at JSTOR Daily.
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