Abstract
Summary
The effect of anoxic anoxia on the propulsive motility of the small intestine of the albino rat was studied at the following partial pressures of oxygen: 94 mm Hg, 80 mm Hg, 63 mm Hg, and 53 mm Hg; corresponding to simulated altitudes of 14,000, 18,000, 24,000, and 28,000 feet. At a simulated altitude of 18,000 feet or higher there was a significant decrease in propulsive motility. The threshold lay between 14,000 and 18,000 feet. The results differ from those obtained in the dog but show fair agreement with those in the mouse.
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