Blood clots are essential to stop bleeding after injury, but harmful blood clots can also form, causing serious damage. Most heart attacks and strokes result from the sudden formation of a blood clot on a cholesterol plaque inside an artery in the heart or brain. When the plaque ruptures suddenly, thrombogenic substances inside the plaque are exposed to blood, triggering the blood clotting process.
1845 Basic unit of life Carl Heinrich Braun reworks the cell theory, calling cells the basic unit of life. 1855 3rd part to the cell theory added Rudolf Virchow, a German physiologist/physician/pathologist added the 3rd part to the cell theory. The original is Greek, and states Omnis cellula e cellula. This translates as all cells develop only from existing cells. Virchow was also the first to propose that diseased cells come from healthy cells.
Matthias Schleiden helped to reject the theory of spontaneous generation by providing evidence of plants and how their organisms grew. Theodor Schwann Theodor Schwann discovered that plants are made up of cells using a microscope, which also supports the cell theory.ike Newton, the cell theory would not have been developed without the invention of the microscope. In order for Matthias Schleiden, Theodor Schwann, and Rudolf Virchow to create the cell theory, they needed the microscopes that Hans and Zacharias Jansen had invented prior to their discoveries.