Abstract
Summary
Direct pressure measurements were obtained simultaneously in the aorta, right atrium, pulmonary artery and left atrium on anesthetized, open-chest rats on a respirator. Mean pressures in the aorta were 105, right atrium 3.3, pulmonary artery 16, and left atrium 5.8 mmHg. The aortic pressure is comparable to previously published values. These vascular pressures should provide helpful guidelines to those investigators utilizing the rat in experimental physiological studies.
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