title: Action potentials in chick atria. Increased susceptibility to blockade by tetrodotoxin during embryonic development.
mesh_terms: D000200:Action Potentials; D000818:Animals; D016275:Atrial Function; D002118:Calcium; D002642:Chick Embryo; D006325:Heart Atria / Q000187:drug effects* / Q000196:embryology; D008564:Membrane Potentials / Q000187:drug effects; D011955:Receptors, Drug; D012964:Sodium; D013779:Tetrodotoxin / Q000494:pharmacology*
chemical_list: D011955:Receptors, Drug; D013779:Tetrodotoxin; D012964:Sodium; D002118:Calcium