title: Reactivity of chick embryo heart to cholinergic agonists during ontogenesis: decline in desensitization at the onset of cholinergic transmission.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000110:Acetylcholinesterase / Q000494:pharmacology; D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D002217:Carbachol / Q000494:pharmacology; D002395:Catecholamines / Q000502:physiology; D002642:Chick Embryo; D003864:Depression, Chemical; D003888:Desensitization, Immunologic; D004558:Electric Stimulation; D006321:Heart / Q000187:drug effects* / Q000254:growth & development / Q000294:innervation; D006584:Hexamethonium Compounds / Q000494:pharmacology; D008688:Methacholine Compounds / Q000494:pharmacology; D010138:Pacemaker, Artificial; D010275:Parasympathetic Nervous System / Q000502:physiology*; D010277:Parasympathomimetics / Q000494:pharmacology*; D010830:Physostigmine / Q000494:pharmacology; D011188:Potassium / Q000502:physiology; D011433:Propranolol / Q000494:pharmacology; D011941:Receptors, Adrenergic / Q000187:drug effects; D012849:Sinoatrial Node / Q000502:physiology; D009435:Synaptic Transmission; D013779:Tetrodotoxin / Q000494:pharmacology; D013997:Time Factors; D014403:Tubocurarine / Q000494:pharmacology
chemical_list: D002395:Catecholamines; D006584:Hexamethonium Compounds; D008688:Methacholine Compounds; D010277:Parasympathomimetics; D011941:Receptors, Adrenergic; D013779:Tetrodotoxin; D001285:Atropine; D002217:Carbachol; D010830:Physostigmine; D011433:Propranolol; D000110:Acetylcholinesterase; D000109:Acetylcholine; D011188:Potassium; D014403:Tubocurarine