Respiratory Gases in the Regulation of the Pulmonary Circulation

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Abstract
"Passive cardiorespiratory influences predominate over vasomotricity in the regulation of the normal circulation. Therefore, the study of the pulmonary vasomotor effects of the respiratory gases in the normal lung is the study of a fine adjustment of the pulmonary circulation." This is the conclusion reached after a discussion of the functional anatomy of the pulmonary circulation, and of acute hypoxia, chronic hypoxia, chronic hyperoxia, and acute hypercapnia in a variety of preparations and situations.