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Science 10 July 1981:
Vol. 213. no. 4504, pp. 237 - 238
DOI: 10.1126/science.7244632
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Articles

Science, Vol 213, Issue 4504, 237-238
Copyright © 1981 by American Association for the Advancement of Science

articles

The diaphragm: two muscles

A De Troyer, M Sampson, S Sigrist, and PT Macklem

The costal and crural parts of the diaphragm were separately stimulated in anesthetized dogs. Stimulation of the costal part increased the dimensions of the lower rib cage, whereas stimulation of the costal part decreased the dimensions of the lower rib cage. It is concluded that the diaphragm consists of two muscles that act differently on the rib cage.


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