The antagonism of potassium and catecholamines on the vascular tone of isolated arterial segments.
D000818:Animals; D001158:Arteries / Q000187:drug effects / Q000502:physiology*; D002417:Cattle; D003250:Constriction; D004106:Dilatation; D066298:In Vitro Techniques; D009130:Muscle, Smooth / Q000187:drug effects / Q000502:physiology*; D009638:Norepinephrine / Q000037:antagonists & inhibitors*; D011188:Potassium / Q000494:pharmacology*; D011189:Potassium Chloride
D011189:Potassium Chloride; D011188:Potassium; D009638:Norepinephrine