Respiration of Heart Muscle as Affected by Oxygen Tension
- 19 July 1963
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 141 (3577) , 274-275
- https://doi.org/10.1126/science.141.3577.274
Abstract
Isolated cat papillary muscles were exposed to gas mixtures containing carbon dioxide and oxygen. In muscles exposed during the second of three periods to 25 percent oxygen, the volume of oxygen consumed (Q O 2 ) was depressed by 50 percent, but returned to the control level during a third period at 98 percent oxygen. The work capacity was not significantly altered if the partial pressure of oxygen was low.Keywords
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