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What did L Orenz Oken Believe?
What is the difference between a cell theory and a prescient theory?
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One of his greatest contributions to science was the creation of scientific congresses outside the university setting. His first meeting was held in Leipzig in 1822. A prolific writer, Oken's books were printed and reprinted until the principles of cell theory, established by Theodor Schwann (1801-1882), superceded his work.
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
May 29, 2018 · OKEN (OR OKENFUSS), LORENZ. ( b. Bohlsbach bei Offenburg, Baden, Germany, 1 August 1779; d. Zurich, Switzerland, 11 August 1851) natural science, philosophy, scientific congresses. The son of poor farmers in the Black Forest, Oken studied at the universities of Freiburg, Würzburg, and Göttingen. In 1803, at the age of twenty-four, he ...
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
- 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
in many quarters as a pioneering effort in cell theory.7 When the first fertilized mammalian ovum was identified and described by Carl Ernst von Baer in 1828, he acknowledged Oken's early contribution and singled out Generation
The <<cellular theory>>, 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.
