[Coronary circulation in cats exposed to different gaseous media].
The ultrasonic method was used in acute experiments on cats with open chest and under artificial lung ventilation to study the coronary circulation, the minute and stroke volumes of the heart during changes in gaseous medium. Hypoxic hypoxia and hypercapnia were demonstrated to induce a considerable increase in the coronary circulation in the presence of a slightly elevated minute volume of the heart. The authors assume that the induced changes in the phasic coronary circulation point to the increased resistance of the coronary vessels to mechanical compression during systoles.
D000818:Animals; D001237:Asphyxia / Q000503:physiopathology*; D002306:Cardiac Volume; D002415:Cats; D003326:Coronary Circulation; D006935:Hypercapnia / Q000503:physiopathology*; D000860:Hypoxia / Q000503:physiopathology*
Koronarnyĭ krovotok u koshek v usloviiakh izmenennoĭ gazovoĭ sredy.