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Claudius Galen, known as Galen proves that arteries contain blood. The blood in the liver travels through the veins and parts of the body.
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Herophilis of Chalcedon dissected the first human body with an audience, determining that veins were thicker than arteries.
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Dissected different animals and observed them back to humans.
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Alcmaeon of Croton is a greek thinker who studies animal dissection and discovers ateries and the veins differences.
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Defines the pulmonary ciculation of blood flwoing in and out the lungs.
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Explains his theory on how blood flows through each sides of the lungs than how blood flows off the verticle walls.
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Explaining his first valves in the veins.
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Annotates the circulation of blood flowing through the body that is pumped off by the heart.
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Comes to be the first person to examine and characterize red bood cells.
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Represents first recorded blood transfusion in animals.
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Transfused blood to a human boy from a lamb and continued to do so until next patient passed away.
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Discovers red blood cells and makes them bigger.
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Arrested blood clotting and seperation of a substance from plasma called "fibrogen"
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Performs first human to human blood transfusion.
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Annotates platelets to make up the unusual clots formed in the blood vessel.
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He observed the different goups of blood in A, B and C, now known as "O".
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Presents the first transfuision using cross matching.
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Identified that sodium thats added to blood will prevent it from clotting.
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Discovered that stored blood will stil remain usable for transfuision.
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Gets people to voulenteer on a 24-hour call in for his blood donor he ran at home.
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The first to test efficancy of transfussing humans with cadaver blood.
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Produced the amounts of Antihomoliphic Factor by thawing frozen plasma and seperating into layers.
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Discovers hepatitis B virus that triggers the production of antibodies.
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First cases of syndrome called Gay Related Immunodeficiency Disease (GRID) but later on renamed Acquired Immune Deficiency Syndrome (AIDS).
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Came to a solution of the viruses that caused AIDS.