Quiroz, A. C.; Sanchez, G.; Giles, T. D.; Burch, G. E.
December 1970
Angiology;Dec1970, Vol. 21 Issue 11, p724
Academic Journal
Pulmonary venous angiograms were recorded in intact dogs before and after a period of hypoxia and injection of norepinephrine and bradykinin. The pulmonary veins were seen to decrease in size after both hypoxia and injection of norepinephrine. Since an increase in pulmonary venous pressure occurred with hypoxia and norepinephrine administration, active venoconstriction may be said to have occurred. This clearly demonstrates the active part played by pulmonary veins in the pulmonary circulation. Pulmonary venous pressure increased also with bradykinin. Since the pulmonary veins were seen to increase in size and number by angiography, the rise in pulmonary venous pressure with bradykinin was due, at least in part, to increased volume.


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