Bayliss, Sir William Maddock

Bayliss, Sir William Maddock (bā'lis) [key], 1860–1924, English physiologist. At University College, London, he investigated the mechanism of heart action, circulation, and digestion. With E. H. Starling he discovered, in 1902, secretin, a hormone produced in the small intestine, and developed a theory of hormone action. He wrote Principles of General Physiology (1914) and The Vaso-Motor System (1923).

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

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