title: Increased sensitivity of sinoatrial pace-maker to acetylcholine and to catecholamines at the onset of autonomic neuroeffector transmission in chick embryo heart.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology*; D000375:Aging; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D001338:Autonomic Fibers, Postganglionic / Q000502:physiology; D002642:Chick Embryo / Q000254:growth & development*; D004558:Electric Stimulation; D004837:Epinephrine / Q000494:pharmacology*; D006321:Heart / Q000196:embryology* / Q000294:innervation; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000494:pharmacology*; D009451:Neuroeffector Junction / Q000187:drug effects*; D010830:Physostigmine / Q000494:pharmacology; D011433:Propranolol / Q000494:pharmacology; D012849:Sinoatrial Node / Q000187:drug effects* / Q000502:physiology; D009435:Synaptic Transmission / Q000187:drug effects*; D013997:Time Factors
chemical_list: D001285:Atropine; D010830:Physostigmine; D011433:Propranolol; D007545:Isoproterenol; D000109:Acetylcholine; D004837:Epinephrine