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Theodor Schwann

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Some writers have suggested that Schwann's move in 1838, and his decreased scientific productivity after that, reflect religious concerns and perhaps even a crisis relating to the theoretical implications of his work on cell theory. However, other authors regard this as misrepresenting his thinking, and reject the idea that Schwann went through an existential crisis or a mystical phase. Ohad Parnes uses Schwann's laboratory notebooks and other unpublished sources along with his publications to reconstruct his research as a unified progression. Florence Vienne draws on unpublished writings to discuss the ways in which cell theory, as a "unifying principle of organic development", related to the philosophical, religious, and political ideas of various proponents including Schwann.
311:, where Müller was now Professor of Anatomy and Physiology. Schwann graduated with an M.D. degree in medicine from the University of Berlin in 1834. He did his thesis work in 1833–1834, with Müller as his advisor. Schwann's thesis involved a careful study of the necessity for oxygen during the embryonic development of the chicken. To carry it out, he designed and built an apparatus that enabled him to pump the gases oxygen and hydrogen out of the incubation chamber at specific times. This enabled him to establish the critical period in which the eggs needed oxygen. 2971: 40: 398:, Schwann continued to follow the latest advances in anatomy and physiology but did not himself make major new discoveries. He became something of an inventor. One of his projects was a portable respirator, designed as a closed system to support human life in environments where the surroundings cannot be breathed. By 1858 he was serving as professor of physiology, general anatomy and embryology. In 1863, the 583:. Liebig, in contrast, saw fermentation as a series of purely chemical events, without involving living matter. Ironically, Schwann's work was later seen as being a first step away from vitalism. Schwann was the first of Müller's pupils to work towards a physico-chemical explanation of life. Schwann's view furthered a conceptualization of living things in terms of the biological reactions of 466:. Schwann realized that other substances in digestive juices might also help to break down food. At the beginning of 1836, Schwann began to study digestive processes. He conceptualized digestion as the action of a physiological agent, which, though not immediately visible or measurable, could be characterized experimentally as a "peculiar specific substance". 684:. Schwann claimed that "there is one universal principle of development for the elementary parts of organisms, however different, and this principle is the formation of cells." Schwann supported this claim by examining adult animal tissues and showing that all tissues could be classified in terms of five types of highly differentiated cellular tissues. 655: 446:, which he saw as a starting point for "the introduction of calculation to physiology". He developed and described an experimental method to calculate the contraction force of the muscle, by controlling and measuring the other variables involved. His measurement technique was developed and used later by 405:
Schwann was deeply respected by his peers. In 1878, a festival was held to celebrate his years of teaching and his many contributions. He was presented with a unique gift: a book containing 263 autographed photographic portraits of scientists from various countries, each of them sent by the scientist
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In examining processes such as muscle contraction, fermentation, digestion, and putrefaction, Schwann sought to show that living phenomena were the result of physical causes rather than "some immaterial vital force". Nonetheless, he still sought to reconcile "an organic nature" with "a divine plan."
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Schwann passed the state examination to practice medicine in the summer of 1834, but he chose to continue to work with Müller, doing research rather than practicing medicine. He could afford to do so, at least in the short term, because of a family inheritance. His salary as an assistant was only 120
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When viewed in the context of his unpublished writings and laboratory notes, Schwann's research can be seen as "a coherent and systematic research programme" in which biological processes are described in terms of material objects or "agents", and the causal dependencies between the forces that they
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Described as quiet and serious, Schwann was particularly gifted in the construction and use of apparatus for his experiments. He was also able to identify important scientific questions and design experiments to systematically test them. His writing has been described as accessible, and his logic as
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was necessary for the process to happen. Next, Schwann tested the effects of purified air and unpurified air. He sterilized the air by passing it through heated glass bulbs. Fermentation did not occur in the presence of purified air. It did occur in the presence of unpurified air, suggesting that
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Schwann proved to be a dedicated and conscientious professor. With his new teaching duties, he had less time for new scientific work. He spent considerable time perfecting experimental techniques and instruments for use in experiments. He produced few papers. One exception was a paper in 1844 that
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Schwann had demonstrated that fermentation required the presence of yeasts to start, and stopped when the yeasts stopped growing. He concluded that sugar was converted to alcohol as part of an organic biological process based on the action of a living substance, the yeast. He demonstrated that
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Schwann went beyond others who simply had noted the multiplication of yeast during alcoholic fermentation, first by assigning yeast the role of a primary causal factor, and then by claiming it was alive. Schwann used the microscope to carry out a carefully planned series of experiments that
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By 1838, Schwann needed a position with a more substantial salary. He hoped to return to Bonn, a Catholic city. He attempted to gain a professorship there in 1838 and again in 1846, but was disappointed. Instead, in 1839, Schwann accepted the chair of anatomy at the
598:, ten years later. Pasteur would begin his fermentation research in 1857 by repeating and confirming Schwann's work, accepting that yeast were alive, and then taking fermentation research further. Pasteur, not Schwann, would challenge Liebig's views in the 1497: 327:
From 1834 to 1839, Schwann worked as an assistant to Müller in at the Anatomisch-zootomische Museum at the University of Berlin. Schwann carried out a series of microscopic and physiological experiments focused on studying the structure and function of
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contraindicated two popular theories of fermentation in yeast. First he controlled the temperature of fluid from fermenting beer in a closed vessel in the presence of oxygen. Once heated, the liquid could no longer ferment. This disproved
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Schwann's third tenet, speculating on the formation of cells, was later disproven. Schwann hypothesized that living cells formed in ways similar to the formation of crystals. Biologists would eventually accept the view of pathologist
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Even more importantly, Schwann wrote, by carrying through such analyses one could eventually "explain the whole developmental process of life in all organized bodies." During the next year, he studied both
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exert, and their measurable effects. Schwann's idea of the cell as a fundamental, active unit then can be seen as foundational to the development of microbiology as "a rigorously lawful science".
3499: 808:, Schwann introduced the term "metabolism", which he first used in the German adjectival form "metabolische" to describe the chemical action of cells. French texts in the 1860s began to use 3024: 3489: 1755: 2981:
Schwann, Theodor and Schleyden, M. J. 1847. Microscopical researches into the accordance in the structure and growth of animals and plants. London: Printed for the Sydenham Society
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Schwann used newly powerful microscopes to examine animal tissues. This enabled him to observe animal cells and note their different properties. His work complemented that of
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Powerful microscopes made it possible for him to observe yeast cells in detail and recognize that they were tiny organisms whose structures resembled those of plants.
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a "clear progression". He identified the question that he wanted to answer and communicated the importance of his findings effectively to others. His co-worker
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In it Schwann declared that "All living things are composed of cells and cell products". He drew three further conclusions about cells, which formed his
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and cartilage from toad larvae, as well as tissues from pig embryos, establishing that animal tissues are composed of cells, each of which has a nucleus.
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fermentation was not an inorganic chemical process like sugar oxidation. Living yeast was necessary for the reaction that would produce more yeast.
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Kruta, V. (1987). "The idea of the primary unity of elements in the microscopic structure of animals and plants. J. E. Purkynĕ and Th. Schwann".
792:" connected to both the inner surface of the enamel and the pulp. He also identified fibrils in the dentinal tubes, which later became known as " 774:
was invented. All axons in the peripheral nervous system are now known to be wrapped in Schwann cells. Their mechanisms continue to be studied.
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By the 1860s, these tenets were the accepted basis of cell theory, used to describe the elementary anatomical composition of plants and animals.
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Oppenheimer, Jane (1963). "Review: LIVES AND LETTERS OF THEODOR SCHWANN A REVIEW Reviewed Work: Lettres de Théodore Schwann by Marcel Florkin".
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viewed and stated that new plant cells formed from the nuclei of old plant cells. Dining with Schwann one day, their conversation turned on the
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elected him an international member. As of 1872, he ceased to teach general anatomy, and as of 1877, embryology. He retired fully in 1879.
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Bunge, R P; Bunge, M B; Eldridge, C F (March 1986). "Linkage Between Axonal Ensheathment and Basal Lamina Production by Schwann Cells".
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tissues. As part of his efforts to classify bodily tissues in terms of their cellular nature, he discovered the cells that envelope the
2177: 344:, Schwann did research of his own. Many of his important contributions were made during the time that he worked with Müller in Berlin. 3464: 3314: 2427: 2333: 2187: 1708: 1223: 785:. He speculated that the muscular nature of the esophagus enabled it to act as a pipe, moving food between the mouth and the stomach. 2507: 2452: 2226: 2069: 1891: 1622: 1580: 1541: 1349: 1311: 3326: 1215:
An Introduction to the History of Medicine, with Medical Chronology, Bibliographic Data and Test Questions – Primary Source Edition
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The biology of pulp and dentine : a historic, terminologic-taxonomic, histologic-biochemical, embryonic and clinical survey
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to be part of the gift for Schwann. The volume was dedicated "To the creator of the cell theory, the contemporary biologists."
1799: 2300: 399: 3504: 3262: 817: 540: 499:"to digest"). Pepsin was the first enzyme to be isolated from animal tissue. He demonstrated that it could break down the 387: 103: 3214: 3134: 873: 536: 735: 599: 3439: 3290: 3202: 3062: 656:
Mikroskopische Untersuchungen über die Uebereinstimmung in der Struktur und dem Wachsthum der Thiere und Pflanzen
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and others. Schwann's notes suggest that he hoped to discover regularities and laws of physiological processes.
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The cell retains a dual existence as a distinct entity and a building block in the construction of organisms.
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Bronze statue of Theodor Schwann at the entrance of the Institute of Zoology, University of Liege, Belgium
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Although Schwann was correct, his ideas were ahead of most of his peers. They were strongly opposed by
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sentiments. There is no evidence to suggest that Schwann and Raspail were aware of each other's work.
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sheaths of peripheral nerves were formed was a matter of debate that could not be answered until the
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Florkin, M. (1958). "Episodes in medicine of the people from Liège: Schwann & the stigmatized".
3350: 3270: 3242: 793: 771: 588: 576: 260: 67: 796:". He speculated on the possible structural and functional significance of the tubes and fibrils. 3398: 2951: 2814: 2564: 2470: 1955: 1194: 1106: 443: 278: 109: 2419: 2413: 933: 2323: 543:, all of whom published work in 1837. By 1836, Schwann had carried out numerous experiments on 3374: 3322: 3210: 2900: 2879: 2856: 2835: 2806: 2777: 2756: 2735: 2690: 2669: 2648: 2627: 2606: 2585: 2556: 2503: 2497: 2458: 2448: 2423: 2394: 2329: 2274: 2222: 2216: 2183: 2149:
Microscopical Researches into the Accordance in the Structure and Growth of Animals and Plants
2065: 2059: 2008: 1947: 1919: 1853: 1704: 1698: 1677: 1654: 1618: 1576: 1537: 1457: 1449: 1403: 1307: 1219: 1213: 883: 852: 584: 572: 463: 270:, a priest and novelist, emphasized the individuality of the human soul and the importance of 2027: 1570: 1529: 1301: 3390: 3342: 3186: 3110: 3070: 2975: 2798: 2725: 2717: 2548: 2384: 2374: 2266: 1998: 1939: 1845: 1146: 1096: 414: 734:—that every cell arises from another cell—in 1857. The epigram was originally put forth by 3358: 3306: 3282: 3250: 3158: 2988: 2482: 2415:
Science and its times : understanding the social significance of scientific discovery
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Schwann T. Ueber die Analogie in der Structur und dem Wachsthum der Thiere und Pflanzen.
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Emil du Bois-Reymond : neuroscience, self, and society in nineteenth-century Germany
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something in the air started the process. This was strong evidence against the theory of
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Krech, Eva-Maria; Stock, Eberhard; Hirschfeld, Ursula; Anders, Lutz Christian (2009).
292:. Müller is considered to have founded scientific medicine in Germany, publishing his 39: 3423: 3382: 3230: 3178: 3174: 3046: 2003: 1986: 1134: 928: 739: 607: 595: 579:, both of whom saw his emphasis on the importance of a living organism as supporting 556: 512: 474: 459: 337: 281:
in the premedical curriculum. He received a bachelor of philosophy in 1831. While at
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Watermann, R. (1973). "Theodor Schwann accepted the honorable appointment abroad".
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eventually becomes a complete organism, established one of the basic principles of
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on 7 December 1810 to Leonard Schwann and Elisabeth Rottels. Leonard Schwann was a
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cells formed by the fusion of walls and cavities, e.g. muscles, tendons and nerves
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New Beer in an Old Bottle: Eduard Buchner and the Growth of Biochemical Knowledge
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The cell is the unit of structure, physiology, and organization in living things.
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The value of Schwann's work on fermentation eventually would be recognized by
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reported on a series of experiments on dogs and established the importance of
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Watermann, R. (1960). "Theodor Schwann as a maker of lifesaving apparatus".
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Florkin, M. (1957). "1838; Year of crisis in the life of Théodore Schwann".
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Miller, David; Millar, Ian; Millar, John; Millar, Margaret (25 July 2002).
1407: 519:, constructing apparatus that he would later adapt for the study of yeast. 251:(also known as the Tricoronatum or Three Kings School), a Jesuit school in 2883: 2860: 2781: 2739: 2721: 2462: 2278: 1101: 1084: 851:] (in German) (7th ed.). Berlin: Dudenverlag. pp. 771, 834. 580: 504: 395: 220: 2552: 1198: 943:. Vol. 24 (11th ed.). Cambridge University Press. p. 388. 701:
cells whose connecting walls have coalesced, e.g. cartilage, bones, and
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cells that are independent but compacted together in layers, e.g. skin,
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Reworking the bench : research notebooks in the history of science
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Lukács, D. (April 1982). "Centenary of the death of Theodor Schwann".
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in 1837–1843 and became the leading physiology textbook of the 1800s.
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had reported in 1824 that the digestive juices of animals contained
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Management of medical technology : theory, practice, and cases
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in 1825, but Raspail's writings were unpopular, partly due to his
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Schwann's theory and observations created a foundation for modern
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Aszmann, O. C. (2000). "The life and work of Theodore Schwann".
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Rosso, Gonzalo; Young, Peter; Shahin, Victor (25 October 2017).
1785:"Early Research on Fermentation—a Story of Missed Opportunities" 1703:(2nd ed.). Lippincott Williams & Wilkins. p. 195. 715: 458:
In 1835, relatively little was known about digestive processes.
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Academic staff of the Catholic University of Leuven (1834–1968)
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Florkin, M. (1957). "Discovery of pepsin by Theodor Schwann".
1617:(2nd ed.). Cambridge University Press. pp. 320–321. 351:
in plants and was informed by it; the two were close friends.
1452:. In Holmes, F. L.; Renn, J.; Rheinberger, Hans-Jörg (eds.). 1359:. San Diego: Academic Press. pp. 215–217. Archived from 491: 478: 1798:. Valencia, Spain: Universitat de València. pp. 43–50. 1085:"Theodor Schwann: A founding father of biology and medicine" 2681:
Florkin, M. (1951). "The family and childhood of Schwann".
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Florkin, M. (October 1951). "Schwann at the Tricoronatum".
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for clinical training in medicine. In 1833, he went to the
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elongated cells forming fibers, e.g. tendons and ligaments
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cells that are independent and separate, e.g. blood cells
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to animals. Other contributions include the discovery of
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Hayashi, M. (1992). "Theodor Schwann and reductionism".
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Schwann also discovered that muscle tissue in the upper
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spoke of him as having an "inborn drive" to experiment.
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American Philosophical Society Member History Database
1392:"A note from history: Introduction of the cell theory" 841:
Dudenredaktion; Kleiner, Stefan; Knöbl, Ralf (2015) .
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The Oxford companion to the history of modern science
1987:"Louis Pasteur, from crystals of life to vaccination" 788:
In examining teeth, Schwann was the first to notice "
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Handbuch der Physiologie des Menschen für Vorlesungen
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and later a printer. Theodor Schwann studied at the
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Helmholtz : from enlightenment to neuroscience
167: 149: 123: 96: 74: 49: 30: 2639:Florkin, M. (1951). "Schwann as medical student". 1700:Acid related diseases : biology and treatment 649:Schwann published his observations in 1838 in the 2100:, 1838;Jan:33–36; 1838;Feb:25–29; 1838;Apr:21–23. 442:Some of Schwann's earliest work in 1835 involved 296:in 1837–1840. It was translated into English as 3490:Members of the Royal Swedish Academy of Sciences 2704:"Neurological stamp. Theodore Schwann (1810–82)" 2064:. Kluwer Academic Publishers. pp. 267–268. 1676:. Westport, Conn: Greenwood Press. p. 95. 1262:Max Planck Institute for the History of Science 523:Yeast, fermentation, and spontaneous generation 3500:Recipients of the Pour le Mérite (civil class) 2029:Technical Mycology: Schizomycetic fermentation 1355:. In Aminoff, Michael; Daroff, Robert (eds.). 666:or cell doctrine. The first two were correct: 3018: 1456:. Kluwer Academic Publishers. pp. 123–. 1212:Garrison, Fielding Hudson (8 December 2013). 1180: 1178: 1176: 1174: 1172: 8: 2152:. Berlin: Printed for the Sydenham Society. 1575:. Cambridge, MA: MIT Press. pp. 51–52. 1523: 1521: 1519: 1517: 1515: 409:Three years after retiring, Schwann died in 2789:Kosinski, C. M. (2004). "Theodor Schwann". 1913: 1911: 1909: 1754:. MIT Press. pp. 56–60. Archived from 1740: 1738: 1736: 1734: 1732: 1536:. Oxford University Press. pp. 44–50. 1306:. Oxford University Press. pp. 60–76. 3025: 3011: 3003: 2447:. Vol. 8. S. Karger. pp. 1–220. 2053: 2051: 1778: 1776: 1139:Historical Studies in the Natural Sciences 986:"Probing the Mysteries of Human Digestion" 923: 921: 919: 917: 915: 913: 911: 27: 3485:Academic staff of the University of Liège 2729: 2388: 2378: 2110: 2108: 2106: 2002: 1606: 1604: 1443: 1441: 1439: 1437: 1435: 1433: 1431: 1429: 1396:Annals of Clinical and Laboratory Science 1357:Encyclopedia of the Neurological Sciences 1252: 1250: 1248: 1246: 1244: 1242: 1100: 19:For the American Union Army officer, see 2502:. Oxford University Press. p. 513. 2252: 2250: 1697:Modlin, Irvin M.; Sachs, George (2004). 1385: 1383: 1381: 1128: 1126: 1124: 1122: 1120: 1078: 1076: 1074: 1072: 1070: 618:, can be traced to Schwann's influence. 2768:Kiszely, G. (1983). "Theodor Schwann". 2179:The Story of Nineteenth-century Science 1295: 1293: 1291: 1289: 1287: 1285: 1283: 833: 750:Schwann was particularly interested in 714:His observation that the single-celled 199:. His most significant contribution to 2541:Journal of Reconstructive Microsurgery 2478: 2468: 2127:from the original on 21 September 2018 2058:Geisler, Eliezer; Heller, Ori (1998). 1614:The Cambridge Dictionary of Scientists 1343: 1341: 1339: 1337: 1335: 259:. In Cologne his religious instructor 1894:from the original on 23 February 2017 1218:. Nabu Press. pp. 387–404, 416. 1133:Vienne, Florence (28 November 2017). 1039: 1037: 1035: 955:"Theodor Schwann German physiologist" 203:is considered to be the extension of 190: 7: 3495:Foreign members of the Royal Society 3475:Humboldt University of Berlin alumni 2998:. New York: Robert Appleton Company. 2516:from the original on 3 February 2024 2412:Schlager, Neil; Lauer, Josh (2000). 2342:from the original on 3 February 2024 2235:from the original on 3 February 2024 2218:Medicine and healers through history 2078:from the original on 3 February 2024 2036:from the original on 3 February 2024 2026:Lafar, Franz; Salter, T. C. (1898). 1966:from the original on 3 February 2024 1918:Springer, Alfred (13 October 1892). 1717:from the original on 3 February 2024 1589:from the original on 3 February 2024 1550:from the original on 3 February 2024 1470:from the original on 3 February 2024 1414:from the original on 24 October 2018 1320:from the original on 3 February 2024 1157:from the original on 24 January 2020 1033: 1031: 1029: 1027: 1025: 1023: 1021: 1019: 1017: 1015: 965:from the original on 31 October 2018 469:Eventually Schwann found the enzyme 2367:Frontiers in Molecular Neuroscience 2271:10.1146/annurev.ne.09.030186.001513 1991:Clinical Microbiology and Infection 1888:Eric Weisstein's World of Biography 1528:Karenberg, Axel (26 October 2000). 1187:Bulletin of the History of Medicine 1000:from the original on 23 August 2020 2322:Jacobson, Marcus (14 March 2013). 2303:from the original on 3 August 2019 1864:from the original on 9 August 2020 1805:from the original on 9 August 2020 1268:from the original on 21 April 2019 371:, Belgium, another Catholic city. 14: 2986:Herbermann, Charles, ed. (1913). 2972:Works by or about Theodor Schwann 2156:from the original on 19 July 2011 1920:"The Micro-organisms of the Soil" 1500:from the original on 29 July 2023 1258:"Schwann, Theodor Ambrose Hubert" 1055:from the original on 6 April 2019 896:from the original on 22 July 2023 390:convinced him to transfer to the 277:In 1829, Schwann enrolled at the 227:, and the invention of the term " 2709:J. Neurol. Neurosurg. Psychiatry 2215:Rogers, Kara (15 January 2011). 2196:from the original on 5 June 2022 2004:10.1111/j.1469-0691.2012.03945.x 365:Université Catholique de Louvain 38: 2115:Rhoads, Dan (5 November 2007). 880:German Pronunciation Dictionary 816:was introduced into English by 16:German physiologist (1810–1882) 3460:Recipients of the Copley Medal 3455:People from the Rhine Province 3445:19th-century German biologists 3327:Jacques Charles François Sturm 2328:(3rd ed.). Plenum Press. 2176:Williams, Henry Smith (1900). 1884:"Schwann, Theodor (1810–1882)" 1448:Parnes, Ohad (11 April 2006). 875:Deutsches Aussprachewörterbuch 400:American Philosophical Society 386:In 1848, Schwann's compatriot 303:In 1831, Schwann moved to the 285:, Schwann met and worked with 1: 3470:University of Würzburg alumni 3263:Giovanni Antonio Amedeo Plana 2259:Annual Review of Neuroscience 1830:Annalen der Physik und Chemie 1569:Finkelstein, Gabriel (2013). 1530:"Chapter 7. The Schwann cell" 1083:Thomas, Tony Abraham (2017). 215:, the discovery and study of 104:Humboldt University of Berlin 2962:Resources in other libraries 2938:Resources in other libraries 1645:Florkin M (March 1957). "". 1300:Otis, Laura (5 April 2007). 849:The Pronunciation Dictionary 766:in his honor. How the fatty 730:, who popularized the maxim 651:Neue notisen geb. nat.-heilk 239:Theodor Schwann was born in 1985:Berche, P. (October 2012). 537:Charles Cagniard de la Tour 3521: 2871:Medizinische Monatsschrift 2496:Heilbron, John L. (2003). 2325:Developmental neurobiology 1674:A short history of biology 1151:10.1525/hsns.2017.47.5.629 541:Friedrich Traugott Kützing 492: 479: 18: 3465:University of Bonn alumni 3041: 2957:Resources in your library 2933:Resources in your library 2803:10.1007/s00115-004-1805-5 2182:. Harper & Brothers. 2146:Schwann, Theodor (1839). 2117:"History of Cell Biology" 1745:Meulders, Michel (2010). 1390:Hajdu, Steven I. (2002). 1348:Aubert, Genviève (2003). 984:Price, Catherine (2018). 213:peripheral nervous system 192:[ˈteːodoːɐ̯ˈʃvan] 177: 160: 37: 2443:Baume, Louis J. (1980). 2380:10.3389/fnmol.2017.00345 2297:Encyclopaedia Britannica 1850:10.1002/andp.18371170517 959:Encyclopaedia Britannica 934:"Schwann, Theodor"  844:Das Aussprachewörterbuch 806:Microscopical researches 736:François-Vincent Raspail 628:Matthias Jakob Schleiden 349:Matthias Jakob Schleiden 235:Early life and education 3291:Antoine César Becquerel 3119:Benjamin Collins Brodie 2989:"Theodor Schwann"  2683:Revue Médicale de Liège 2662:Revue Médicale de Liège 2641:Revue Médicale de Liège 2620:Revue Médicale de Liège 2599:Revue Médicale de Liège 2578:Revue Médicale de Liège 1783:Schlenk, Fritz (1997). 1647:Revue Médicale de Liège 940:Encyclopædia Britannica 762:, which are now called 732:Omnis cellula e cellula 553:Joseph Louis Gay-Lussac 388:Antoine Frédéric Spring 255:. Schwann was a devout 219:, the discovery of the 3450:German Roman Catholics 3055:William Hyde Wollaston 2418:. Gale Group. p.  1672:Asimov, Isaac (1980). 1089:Current Medical Issues 822:Textbook of Physiology 600:Liebig–Pasteur dispute 562:spontaneous generation 425: 394:, also in Belgium. At 305:University of Würzburg 298:Elements of Physiology 115:University of Würzburg 3295:John Frederic Daniell 3167:Hans Christian Ørsted 3127:William Thomas Brande 2995:Catholic Encyclopedia 2893:Die Medizinische Welt 2722:10.1136/jnnp.66.1.103 2098:Neue Not Geb Nat Heil 1824:Schwann, Th. (1837). 1102:10.4103/cmi.cmi_81_17 602:. In retrospect, the 545:alcohol fermentation. 527:Next Schwann studied 423: 290:Johannes Peter Müller 188:German pronunciation: 3505:German physiologists 3407:Peter Andreas Hansen 3303:Carl Friedrich Gauss 3279:Jöns Jacob Berzelius 3255:Siméon Denis Poisson 3087:Thomas Andrew Knight 2702:Haas, L. F. (1999). 1534:Neurological eponyms 1135:"Worlds Conflicting" 634:of plant and animal 503:from egg-white into 448:Emil du Bois-Reymond 309:University of Berlin 3351:Jean-Baptiste Dumas 3271:William Snow Harris 3243:George Biddell Airy 2553:10.1055/s-2000-7336 1936:1892Natur..46R.576. 1842:1837AnP...117..184S 772:electron microscope 589:inorganic chemistry 392:University of Liège 249:Dreikönigsgymnasium 68:First French Empire 3399:Roderick Murchison 2946:By Theodor Schwann 1792:Cornish-Bowden, A. 1761:on 3 November 2018 644:notochordal tissue 444:muscle contraction 426: 279:University of Bonn 110:University of Bonn 3440:People from Neuss 3417: 3416: 3375:Urbain Le Verrier 3323:Justus von Liebig 3034:Copley Medallists 2919:Library resources 1930:(1198): 576–579. 1683:978-0-313-22583-3 1490:"Theodor Schwann" 1463:978-0-306-48152-9 1350:"Theodor Schwann" 1049:Famous Scientists 1045:"Theodor Schwann" 889:978-3-11-018202-6 858:978-3-411-04067-4 790:cylindrical cells 746:Specialized cells 610:, as well as its 585:organic chemistry 573:Justus von Liebig 464:hydrochloric acid 181: 180: 162:Scientific career 3512: 3410: 3402: 3394: 3391:John Couch Adams 3386: 3378: 3370: 3362: 3354: 3346: 3343:James MacCullagh 3338: 3330: 3318: 3310: 3298: 3286: 3274: 3266: 3258: 3246: 3238: 3226: 3218: 3206: 3198: 3190: 3187:William Buckland 3182: 3170: 3162: 3154: 3146: 3138: 3130: 3122: 3114: 3111:Edward Troughton 3106: 3098: 3090: 3082: 3074: 3071:Smithson Tennant 3066: 3063:Richard Chenevix 3058: 3050: 3027: 3020: 3013: 3004: 2999: 2991: 2976:Internet Archive 2908: 2887: 2864: 2843: 2828:Folia Mendeliana 2822: 2785: 2764: 2749:Kagakushi Kenkyu 2743: 2733: 2698: 2677: 2656: 2635: 2614: 2593: 2572: 2526: 2525: 2523: 2521: 2493: 2487: 2486: 2480: 2476: 2474: 2466: 2440: 2434: 2433: 2409: 2403: 2402: 2392: 2382: 2358: 2352: 2351: 2349: 2347: 2319: 2313: 2312: 2310: 2308: 2289: 2283: 2282: 2254: 2245: 2244: 2242: 2240: 2212: 2206: 2205: 2203: 2201: 2173: 2167: 2165: 2163: 2161: 2143: 2137: 2136: 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802: 748: 624: 525: 456: 440: 431: 325: 263: 237: 187: 184:Theodor Schwann 145: 119: 92: 83: 79: 78:11 January 1882 70: 61: 60:7 December 1810 55: 53: 45: 44:Schwann in 1857 33: 32:Theodor Schwann 24: 21:Theodore Schwan 17: 12: 11: 5: 3518: 3516: 3508: 3507: 3502: 3497: 3492: 3487: 3482: 3477: 3472: 3467: 3462: 3457: 3452: 3447: 3442: 3437: 3432: 3422: 3421: 3415: 3414: 3412: 3411: 3403: 3395: 3387: 3379: 3371: 3363: 3355: 3347: 3339: 3331: 3319: 3311: 3299: 3287: 3275: 3267: 3259: 3247: 3239: 3227: 3219: 3211:François Arago 3207: 3199: 3191: 3183: 3171: 3163: 3155: 3147: 3143:David Brewster 3139: 3131: 3123: 3115: 3107: 3099: 3091: 3083: 3075: 3067: 3059: 3051: 3042: 3039: 3038: 3032: 3030: 3029: 3022: 3015: 3007: 3001: 3000: 2983: 2978: 2965: 2964: 2959: 2954: 2948: 2944: 2941: 2940: 2935: 2929: 2928: 2917: 2916: 2914: 2913:External links 2911: 2910: 2909: 2888: 2865: 2849:Orvosi Hetilap 2844: 2823: 2791:Der Nervenarzt 2786: 2776:(16): 959–62. 2770:Orvosi Hetilap 2765: 2744: 2699: 2678: 2657: 2636: 2615: 2605:(18): 503–10. 2594: 2584:(18): 627–38. 2573: 2534: 2531: 2528: 2527: 2508: 2488: 2479:|journal= 2453: 2435: 2429:978-0787639372 2428: 2404: 2353: 2335:978-0306437977 2334: 2314: 2293:"Schwann cell" 2284: 2265:(1): 305–328. 2246: 2227: 2207: 2189:978-1145376991 2188: 2168: 2138: 2102: 2089: 2070: 2047: 2018: 1977: 1905: 1875: 1836:(5): 184–193. 1816: 1772: 1728: 1710:978-0781741231 1709: 1689: 1682: 1664: 1637: 1623: 1600: 1581: 1561: 1542: 1511: 1481: 1462: 1425: 1377: 1331: 1312: 1279: 1238: 1225:978-1295393169 1224: 1204: 1168: 1145:(5): 629–652. 1116: 1066: 1011: 976: 946: 931:, ed. 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Index

Theodore Schwan

Neuss
First French Empire
Cologne
German Empire
Humboldt University of Berlin
University of Bonn
University of Würzburg
Cell theory
Schwann cells
Pepsin
Copley Medal
Biology
[ˈteːodoːɐ̯ˈʃvan]
physiologist
biology
cell theory
Schwann cells
peripheral nervous system
pepsin
organic
yeast
metabolism
Neuss
goldsmith
Dreikönigsgymnasium
Cologne
Roman Catholic
Wilhelm Smets

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