on account of the intimate association between microvessels and the airway wall , we have also examined the effects of endothelium-derived constrictors on tracheal smooth muscle and have shown that conditioned media from pulmonary artery and from pulmonary microvascular endothelial cells constrict both coronary artery rings and tracheal smooth muscle strips .
C0014257
endothelium
C0225336
endothelial cells