A considerable amount of work has been done on the physiology of various phases of respiration, and a great many interesting data have been collected concerning the circulation through the lungs in different stages of their expansion or collapse. Such data are valuable, but since in normal respiration the degree of distention or collapse of the lungs is constantly changing, the results of such experiments can only by inference be applied to the complete respiratory cycle.
However, from a therapeutic point of view, we are more concerned with the sum of the reactions of the cardiorespiratory mechanism as a whole throughout its complete cycles and in response to various strains put on it through pathologic changes or in the course of therapeutic procedures.
STUDIES ON THE CARDIORESPIRATORY MECHANISM
Consequently, it has seemed to us worth while to study some of the effects on the cardiorespiratory mechanism as a whole of
ANDRUS WD, WILSON JD. THE EFFECTS OF CLOSED PNEUMOTHORAX AND PHRENICOTOMY ON THE CARDIORESPIRATORY FUNCTION. Arch Surg. 1929;19(6):1205–1211. doi:10.1001/archsurg.1929.01150060267015
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