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Jun 2, 2021 · In honor of his contribution, this was later eponymously named the Schwann cell [3, 7, 9]. He also found that during embryonic development individual cells unite to form the muscle fiber . Schwann’s book gained international recognition after it was printed in French (in 1842) and English (in 1847).
- Michał K. Owecki
- 10.1007/s00415-021-10630-6
- 2021
- J Neurol. 2021; 268(12): 4921-4922.
Theodor Schwann is best remembered for the eponymous Schwann cell that he studied and described in his microscopic studies of nervous tissue. However, his most important contribution to science would be the fact that he was one of the founders of the ' Cell doctrine ' which proposed that all living beings were made of fundamental units called cells - a foundational principle on which rests ...
The Schwann cell is named in honour of the German physiologist Theodor Schwann (1810–1882, Figure 1.1) who is now acknowledged as the founder of modern histology. In addition to describing the Schwann cell, he made numerous contributions to the fields of biology, physiology and histology – not least as one of the instigators and main ...
- Emily Mathey, Patricia J. Armati
- 2007
- Pepsin
- Spontaneous Generation of Life
- Microbes, Yeast and Fermentation
- The Cell Doctrine and Schwann Cells
- Schwann’s Big Mistake
- Histology
- Some Personal Details and The End
In 1835, while studying digestive processes, he realized that as well as hydrochloric acid there is a further substance in the stomach that aids the digestion of food. In 1836 he successfully isolated and named this additional substance: he had discovered the enzyme pepsin.
Between 1834 and 1838 Schwann carried out experiments to probe the phenomenon of spontaneous generation of life, which was widely believed to be responsible for microorganisms. In one experiment he took a broth of nutrients and sterilized it by boiling. He also heated the air above it to a high temperature. The result was that no microbes grew and ...
Schwann identified the role of microorganisms in putrefaction and alcohol fermentation. He carried out a variety of fermentation experiments and by 1836 had gathered enough evidence to convince himself that the conversion of sugar to alcohol during fermentation was a biological process that required the action of a living substance (yeast) rather t...
Plant cells had been discovered by Robert Hooke in the early 1660s. Blood cells had been seen by Jan Swammerdam in 1668 and then described much more clearly by Antonie van Leeuwenhoekin 1674. Leeuwenhoek had gone on to discover bacteria in 1676. As increasingly powerful microscopes became more widely available, the structural details in animal and ...
Schwann scored a big hit with cell-theory – it was accepted by the scientific world unusually quickly. However, his book also contained a significant error, because Schwann did not recognize that new cells are formed by pre-existing cells. He wrote: He called this non-existent structureless substance blastema. In 1855 Rudolph Virchowpublished an es...
Schwann made a significant contribution to histology – the anatomy of cells and tissues on the microscopic scale – when he placed adult animal tissues into five distinct groups: 1. separate independent cells, e.g. blood 2. compacted independent cells, e.g. skin, nail, feathers 3. cells whose walls have coalesced, e.g. cartilage, bones, and teeth 4....
In 1839 – the same year as Microscopical Researcheswas published – Schwann, aged 28, became professor of anatomy at the University of Louvain, Belgium. In 1845 he was awarded the Royal Society Copley Medal for his cell work. This was the most prestigious prize in science, previously awarded to scientists such as Benjamin Franklin, Alessandro Volta,...
Jun 2, 2021 · Theodor Schwann (Fig. 1 ), the eminent founder of modern histology and the discoverer of the lemmocyte, was born on December 7, 1810 in Neuss, Germany, the fourth son of Elisabeth (née Rottels) and Leonard Schwann, the owner of a local bookstore. Theodor grew up in a large family—he had twelve siblings.
- Michał K. Owecki
- michal.owecki@wp.pl
- 2021
Schwann cell Plate 4, Figure 9 from the book, showing drawings of what are now called Schwann cells in the vagus nerve of a calf. The book is credited with the first description of what would later be called Schwann cell, a type of glial cell. The description of the cells was evident from passages such as:
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Jan 1, 2017 · Theodor Schwann went to school in Neuss and Cologne. From 1829 to 1831, he studied philosophy and medicine in Bonn, and subsequently medicine in Würzburg from 1831 and in Berlin from 1833. In Würzburg, he attended the lectures of the famous clinician Johann Lukas Schönlein. At the universities of Bonn and Berlin, he was a student of the ...
