the vasoconstrictor responses induced by noradrenaline ( na ) , adrenaline ( ad ) , serotonin ( st ) and vasopressin ( vp ) on the anterior mesenteric artery of the rat and its branches , were maintained , although somewhat reduced when perfused with a ca free solution that depletes extracellular ca .
C0028351
noradrenaline
C0014563
adrenaline