Theodor Schwann Facts

Theodor Schwann Facts
Theodor Schwann (December 7, 1810 to January 11, 1882) was a German physiologist. He is credited with the development of cell theory and Schwann cells in the peripheral nervous system are named for him.
Interesting Theodor Schwann Facts:
Theodor Schwann was born in Neuss, Germany.
He studied at the Jesuits College in Cologne.
He transferred to Berlin where he worked under Johannes Peter Muller.
During his observation of muscle cells Schwann noticed that the upper esophagus contained striated muscle.
He began to study the physiology of muscle contraction.
In 1837 he discovered a digestive enzyme which he named pepsin.
In 1839 he accepted the post of chair of anatomy at the Catholic University of Leuven.
He transferred to the University of Liege in 1848 where he worked to develop a respirator for use in environments where there was a shortage of breathable air.
While in Liege he wrote Microscopic Investigations on the Accordance in the Structure and Growth of Plants and Animals in which he stated that "all living things are composed of cells and cell products."
This is the cell theory for which he is best known.
He proved the cellular origin of differentiated tissues and observed that organisms develop from a single ovum.
He was one of the first to discard the theory of vitalism and study a chemical explanation for life.
Schwann retired 1879, three years before his death.

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