title: Localization and mode of action of cardioexcitatory agents in molluscan hearts.
mesh_terms: D000262:Adenylyl Cyclases / Q000378:metabolism; D000588:Amines / Q000494:pharmacology*; D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002395:Catecholamines / Q000032:analysis; D000242:Cyclic AMP / Q000096:biosynthesis; D006321:Heart / Q000187:drug effects* / Q000294:innervation / Q000502:physiology; D006325:Heart Atria; D006651:Histocytochemistry; D008854:Microscopy, Electron; D009206:Myocardium / Q000737:chemistry* / Q000166:cytology; D009489:Neurosecretion; D012701:Serotonin / Q000032:analysis / Q000494:pharmacology; D012908:Snails
chemical_list: D000588:Amines; D000596:Amino Acids; D002395:Catecholamines; D012701:Serotonin; D000242:Cyclic AMP; D000262:Adenylyl Cyclases