Born: July 26, 1815. [Died] August 29, 1865. German zoologist. He studied medicine at the University of Berlin under J. Müller, and became a professor at the same university in 1859. He discovered cell division in embryonic blood cells (1841) and confirmed that cell proliferation occurs through cell division (52). He also studied the development of vertebrates, and in 1842 revealed that the early embryo consists of three parts: endoderm, mesoderm, and ectoderm. He also discovered non-spinal nerves (38) and ganglia in the heart (44), among other accomplishments. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
[生]1815.7.26. [没]1865.8.29. ドイツの動物学者。ベルリン大学で医学を学び,J.ミュラーに師事。 1859年より同大学教授。胚の血球に細胞分裂像を見出し (1841) ,細胞分裂によって細胞の増殖が起ることを確証 (52) 。また脊椎動物を対象として発生を研究し,42年に発生初期の胚が内胚葉,中胚葉,外胚葉の3部分より成っていることを明らかにした。その他,非脊髄性神経を見つけ (38) ,心臓に神経節を発見する (44) など,数多くの業績を残している。 出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報 |
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