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Q.

Who first wrote an in-depth treatise on the venous system, accurately describing the function of the veins and their valves?

Tags: education, science, computers & internet
Asked by truth exposed, 18 Feb '12 09:16 pm
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Answers (4)

 
1.

The second was the description of the movement of blood through the pulmonary transit by the Syrian physician Ibn al-Nafis (d. 1288/678). Ibn al-Nafis composed a very popular epitome of the Canon of Medicine by Ibn Sina (Avicenna) which he called the Mujiz.

In addition, however, Ibn al-Nafis also wrote a commentary on the Canon in which he criticized Ibn Sina for spreading his discussion of the anatomy over several different sections of the Canon. Ibn al-Nafis subsequently prepared a separate commentary on just the anatomical portions, and it was in this latter commentary that he explicitly stated that the blood in the right ventricle of the heart must reach the left ventricle by way of the lungs and not through a passage connecting the ventricles, as Galen had maintained.

This formulation of the pulmonary circulation, sometimes called the 'lesser circulation', was made three centuries before Michael Servetus (d. 1553) and Realdo Colombo (d. 1559), the first Europeans to describe ...more
Answered by chela, 18 Feb '12 09:26 pm

 
  
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2.

N the 10th century, Islam's ar-Razi wrote an in-depth treatise on the venous system, accurately describing the function of the veins and their valves. Ibn an-Nafs and Ibn al-Quff (13th century) provided full documentation that the blood circulates and correctly described the physiology of the heart and the function of its valves 300 years before Harvey. William Harvey was a graduate of Italy's famous Padua University at a time when the majority of its curriculum was based upon Ibn Sina's and ar-Razi's textbooks.
Answered by hazir jawab, 18 Feb '12 09:19 pm

 
  
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3.

Ibn al-Nafis
Answered by hemant mehta, 18 Feb '12 09:27 pm

 
  
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Ibn al-Nafis
Answered by onlytruth, 18 Feb '12 09:56 pm

 
  
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