Pressure-volume relationships in the pulmonary "venous" system in living dogs.
نویسندگان
چکیده
منابع مشابه
Reflex venoconstriction and capacity vessel pressure-volume relationships in dogs.
Reflexogenic control of vascular capacity was studied by measuring the mean circulatory pressure (PMc) a t various blood volumes. PMC was obtained by fibrillating the heart for 10 seconds and rapidly transferring blood from the aorta to the vena cava until the pressures equilibrated. It was measured 0.5, 2, and 5 minutes after randomized changes in blood volume of 0 to ± 30% of the control volu...
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T HE object of this investigation was to measure simultaneous changes in blood pressure and blood flow in the pulmonary circulation of the intact dog. Observations were made during standing and running at different rates on a treadmill. A further group of dogs subjected recently to ligation and division of the left pulmonary artery was studied also. This permitted an extension of the observatio...
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This paper will discuss the recent finding that the normal interstitial fluid pressure is negative rather than positive and will present a method for recording dynamic changes in interstitial fluid pressure. Especially important is the shape of the pressure-volume curve of the interstitial spaces. So long as the interstitial fluid pressure is negative, the interstitial fluid volume remains almo...
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Pressure-volume curves have been recorded for the arterial and the venous systems of live dogs. The quantity of blood in the arterial system of a ~-kg dog was found to average approximately 60 cc greater when the heart was pumping blood normally than when the circulation of blood was at a standstill. Likewise, under normal dynamic conditions the quantity of blood in the venous system of the IZ-...
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The effect of epinephrine on peripheral circulation was studied in ten anesthetized open-chest dogs. Blood flow and right atrial pressure were independently controlled by a right heart bypass; changes in blood volume could be precisely determined from the changes occurring in the bypass reservoir. At constant blood flow and right atrial pressure, a constant infusion of epinephrine (5.8 Mg/kg mi...
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ژورنال
عنوان ژورنال: Japanese Circulation Journal
سال: 1987
ISSN: 0047-1828,1347-4839
DOI: 10.1253/jcj.51.33