experiments were performed on 19 anaesthetized open-chest dog instrumented with polyethylene catheters inserted : into the aorta , in pulmonary artery and in left atrium and with an electromagnetic flow-transducer placed around the ascending aorta in order to record : systemic arterial and pulmonary pressures , mean left auricular pressure and phasic aortic flow .
C0003956
ascending
C0003483
aortic