-
Period: Dec 1, 1000 to
Circulating Through Time
-
Dec 1, 1200
Eminent Cairo
Eminent describes pulmenary circulation. This shows the flow blood to and from the lungs. -
Dec 1, 1553
Michael Servetus
Spanish physician and theologian Michael Servetus suggests that blood flows from one side of the heart to the other through the lungs instead of through the wall between the ventricles. -
Jan Swammerdam
Jan Swammerdam was the first person to observe and describe a Red Blood Cell. -
Marcello Malpighi
Using a rudimentary microscope, Italian anatomist Marcello Malpighi observes the capillary system. This is a network of fine vessels that connect the arteries and the veins. -
Anton Van Leeuwenhoek
Anton Van Leeuwenhoek approximates a Red Blood Cell's size as 25,000 times smaller than a fine grain of sand. This provides us with more of a precise description of Red Blood Cells. -
James Blundell
James Blundell performs the first recorded human to human blood transfusion which shows that you can use other peoples blood to put into someone's body. -
Sir William Osler
Sir William Osler observed that cell fragments from bone marrow make up the bulk of clots formed in blood vessels which led to the discovery of platelets. -
Karl Landsteiner
Karl Landsteiner discoveredthe three main human blood groups: A, B, and C. Which show your blood type. -
Alfred Von Discastello and Adriano Sturli
Alfred Von Discastello and Adriano Sturli, parters of Karl Landsteiner, discovered the fourth blood group "AB". -
Dr. Richard Lewisohn
Dr. Richard Lewisohn formulated the optimum concentration of sodium citrate that can be mixed with donor blood. This prevents coagulation and determines that citrated blood can be stored and used later.
