to determine the effect of left atrial hypertension on the vascular response to hypoxia in the newborn lung , we measured pulmonary artery and left atrial pressures , lung blood flow and lymph flow , and concentrations of protein in lymph and plasma of 13 lambs that spontaneously breathed air for 2-6 h ( control period ) , followed by 8-11 % o2 mixed with 3-5 % co2 and n2 for 2-4 h ( experimental period ) .
C0034052
pulmonary artery
C0024109
lung