write about the virchow's theory.....
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Cell Theory Background
Every student in biology class learns about cell theory. This theory has three main components: all living organisms are made of cells, cells are the basic unit of life for all living things, and all cells arise from pre-existing cells. It's the last theory that was popularized by German scientist and physician, Rudolf Virchow, and he laid the foundation for cellular pathology.
We're made of trillions of cells, but where do these cells come from? In 1855 Virchow published a statement based on his observations Omnis cellula e cellula, which means that all cells arise from pre-existing cells. This was not a new theory. A scientist by the name of Robert Remak had written about it, but it was the first time it received any attention and created a landmark in modern biology. Until Virchow came out with this theory, it was believed that new cells were created from a fluid called blastema. It was also accepted in the early 1850s that imbalances in blastema caused diseases. Virchow used the theory that all cells arise from pre-existing cells to lay the groundwork for cellular pathology, or the study of disease at the cellular level. His work made it more clear that diseases occur at the cellular level. His work led to scientists being able to diagnose diseases more accurately.
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Cell biology
Virchow is credited with several key discoveries. His most widely known scientific contribution is his cell theory, which built on the work of Theodor Schwann.Virchow's cellular theory was encapsulated in the epigram Omnis cellula e cellula ("all cells come from cells"), which he published in 1855.
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