title: Organ-cultured chick embryonic hearts of various ages. I. Electrophysiology.
mesh_terms: D000200:Action Potentials; D000818:Animals; D002118:Calcium / Q000494:pharmacology; D002395:Catecholamines / Q000502:physiology; D002642:Chick Embryo; D006321:Heart / Q000196:embryology*; D006329:Heart Conduction System / Q000187:drug effects*; D007545:Isoproterenol / Q000494:pharmacology; D008345:Manganese / Q000494:pharmacology; D008854:Microscopy, Electron; D009206:Myocardium / Q000378:metabolism; D009924:Organ Culture Techniques; D012964:Sodium / Q000378:metabolism; D013779:Tetrodotoxin / Q000494:pharmacology
chemical_list: D002395:Catecholamines; D008345:Manganese; D013779:Tetrodotoxin; D012964:Sodium; D007545:Isoproterenol; D002118:Calcium