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Schwann   Listen
Schwann

noun
1.
German physiologist and histologist who in 1838 and 1839 identified the cell as the basic structure of plant and animal tissue (1810-1882).  Synonym: Theodor Schwann.



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"Schwann" Quotes from Famous Books



... doctrine is, in brief, the theory that the bodies of animals and plants are built up entirely of minute elementary units, more or less independent of each other, and all capable of growth and multiplication. This doctrine is commonly regarded as being inaugurated in 1839 by Schwann. Long before this, however, many microscopists had seen that the bodies of plants are made up of elementary units. In describing the bark of a tree in 1665, Robert Hooke had stated that it was composed of little boxes or cells, and regarded it as a sort of honeycomb structure ...
— The Story of the Living Machine • H. W. Conn

... the cell-theory by Schwann in 1839 an important step was taken in the analysis of the degrees of composition of the animal body. Aristotle had distinguished three—the unorganised material, itself compounded of the four primitive elements, earth and water, air and fire, the homogeneous parts ...
— Form and Function - A Contribution to the History of Animal Morphology • E. S. (Edward Stuart) Russell



Words linked to "Schwann" :   physiologist, Schwann cell, histologist



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