Role of cyclic AMP and Ca ++ in mechanical and metabolic events in isometrically contracting vascular smooth muscle.

Animals Buffers Calcium/metabolism,pharmacology Catecholamines/pharmacology Cattle Cyclic AMP/metabolism,pharmacology Depression, Chemical Epinephrine/pharmacology Histamine/pharmacology Hydrogen-Ion Concentration Isoproterenol/pharmacology Mesenteric Arteries/drug effects,enzymology Muscle Contraction/drug effects Muscle, Smooth/drug effects,metabolism Phenylephrine/pharmacology Receptors, Adrenergic/drug effects Spectrophotometry, Atomic Stimulation, Chemical

Buffers Catecholamines Receptors, Adrenergic Phenylephrine Histamine Cyclic AMP Isoproterenol Calcium Epinephrine