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- The < >, elaborated during the 19th century by researchers such as Lorenz Oken, Matthias Schleiden, Theodor Schwann and Rudolf Virchow, greatly modified the conception of life that Man had had up to then, since it asserted that the cell is the basic organic unit of all living beings and that every living being stems from a cell.
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His general ideas about the elemental structures of living organisms, though specifically incorrect, anticipated the subsequent identification of the cell and development of cell theory. He was also a founder of scientific congresses or meetings.
May 29, 2018 · In Die Zeugung Oken postulated that life began on the seashore as Urschleim (primal mucous plasm) of “infusoria,” cells whose agglomerations and combinations formed into organisms (Engelhardt, 1997).
- Johannes Peter Müller
- Theodor Schwann
- Carl Rokitansky
- Rudolf Virchow
Johannes Peter Müller, who has become one of the most distinguished physiologists of Germany, was born in Koblenz into a shoemaker’s family on July 14, 1801. Educated in the faith of the Catholic Church, he entered a Latin seminary of the Jesuits. At first, Müller wanted to start a life path as a Roman Catholic priest. Nevertheless, he got interest...
Schwann was born in Neuss on the Rhine, a few miles from Cologne. He received an excellent training in mathematics and physics at the Jesuits College and started to study medicine in 1829. Schwann received his MD in 1834 in Berlin and learned anatomy, physiology, and general pathology from Johannes Müller (1801–1858). During these years spent under...
Rokitansky (Fig. 2) was one of the towering figures in the history of pathological anatomy. Karl Freiherr von Rokitansky was born on February 19, 1804, in Königgrätz (today Hradec Králové, Bohemia, Czech Republic) and died on July, 23, 1878, in Vienna, Austria. He studied in Prague and Vienna and started his career in the morgue of the Allgemeine K...
Rudolf Carl Virchow (Fig. 3) was born 1821 in Schivelbein (Pomerania, Prussia; now Świdwin, Poland) and moved up to be one of the most prominent pathologists and physicians of the 19th century. He pioneered the modern concept of diagnostic pathology and created the modern scientific paradigm by its application of cell theory to explain the effects ...
- Roland Sedivy
- roland@sedivy.net
- 2020
Harris points out that it was not until 1805 that the biologist Lorenz Oken had the prescient intuition of the fundamental homology between the ‘little animals’ of Leeuwenhoek and the...
- Paolo Mazzarello
- 2000
Mar 2, 2018 · This idea stimulated the concept of German philosopher Lorenz Oken (1779–1851) that all organisms are composed of “infusoria” and “Urbläschen” (primordial bubbles) as basic life units; this speculation directly preceded the works of the first empirical cell biologists (Canguilhem 2008; Harris 2000). However, it was only the invention ...
- Juraj Sekeres, Juraj Sekeres, Viktor Zarsky, Viktor Zarsky
- 2018
The CELL THEORY or cell doctrine, states that all organisms are composed of similar units of organization, called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology. The idea predates other great paradigms of biology including Darwin's theory of evolution (1859 ...
Naturphilosophie (Handbook of Natural Philosophy (1809)) by Lorenz Oken (1779 1851), which attempts to demonstrate how the entire universe was derived from the primordial zero, identified with God, and formed into the three kingdoms of nature -
