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Vilfredo Pareto

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What was galens theory about blood circulation?

Galen's theory about blood circulation was based on the idea that blood was continuously produced in the liver, then absorbed by the body's tissues, and eventually consumed or used up. He did not have a correct understanding of the circulation system as we know it today, but his theories dominated Western medicine for over a thousand years.


Who gave evidence of the big bang theory?

edwin hubble


Which scientist disproved Galen's theory about the circulation of the blood?

William Harvey, an English physician, is credited with disproving Galen's theory about the circulation of the blood through his groundbreaking work "De Motu Cordis" (On the Motion of the Heart). This work was published in 1628 and described the systemic circulation of blood through the heart and body. Harvey's discoveries were based on careful observation, experimentation, and dissection of various animals.


How did the theory of blood circulation change?

The theory of blood circulation changed significantly with the publication of William Harvey's book "De Motu Cordis" in 1628. Harvey proposed that blood circulates continuously around the body in a closed system, propelled by the heart. This replaced the older theory of blood being consumed by the body, and laid the foundation for modern understanding of the circulatory system.


Who is the Arab scientist who discovered the pulmonary circulation?

Ibn al-Nafis, an Arab physician in the 13th century, was the first to describe the pulmonary circulation of blood in his work "Commentary on Anatomy in Avicenna's Canon." He challenged the prevailing belief of Galen's theory at the time.