Tag: circulation
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William Harvey before King Charles I
In 1628 William Harvey published his classic work De Motu Cordis (Of the Motion of the Heart and Blood in Animals) demonstrating that the blood passed from the left ventricle to the capillaries at the periphery and back through the veins to the right side of the heart. He received many honors for his work, and…
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Blood beliefs and practices in Iran
Bahar DowlatshahiTehrann, Iran Blood is believed to have special abilities and properties in many eastern countries such as Iran. Even human personality traits, emotions, and relationships are referred to with blood. Angry people boil their blood; those who are kind and loving are called warm-blooded. In the tradition of some tribes, a stranger can be…
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Blood is NOT the essence of life?
Mair ZamirLondon, Ontario, Canada We think of blood somewhat reverently as the essence of life. Yet we miss the point. The essence of life is not blood, it is blood flow. When the heart stops beating the body dies, not because of lack of blood but because of lack of blood flow. In most cases…