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His, Wilhelm |
Also found in: Hutchinson | 0.06 sec. |
His, Wilhelm(born Dec. 29, 1863, Basel, Switz.—died Nov. 10, 1934, Wiesental) Swiss cardiologist. His father, Wilhelm His (1831–1904), first realized that each nerve fibre stems from a single neuron and invented the microtome, a device used to slice thin tissue sections for microscopic examination. The younger His discovered (1893) the specialized muscle fibres (bundle of His) running along the septum between the heart's left and right chambers. He found that they help communicate a single rhythm of contraction to all parts of the heart, and he was one of the first to recognize that the heartbeat originates in individual cells of heart muscle. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Hirschman, Albert O. Hirshhorn Museum and Sculpture Garden Hirshhorn, Joseph H. Hirst hirsute Hirtius, Aulus Hirudinea His, Wilhelm Hisar Hishikawa Moronobu Hispania Hispanic Hispaniola hiss Hiss, Alger |
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