title: Developmental changes in the sensitivity of embryonic heart cells to tetrodotoxin and D600.
mesh_terms: D000367:Age Factors; D000818:Animals; D001692:Biological Transport / Q000187:drug effects; D002642:Chick Embryo; D046508:Culture Techniques; D004553:Electric Conductivity; D005711:Gallopamil / Q000494:pharmacology*; D006321:Heart / Q000196:embryology*; D009200:Myocardial Contraction / Q000187:drug effects*; D012964:Sodium / Q000378:metabolism; D013779:Tetrodotoxin / Q000494:pharmacology*; D014700:Verapamil / Q000031:analogs & derivatives*; D014701:Veratridine / Q000037:antagonists & inhibitors
chemical_list: D005711:Gallopamil; D013779:Tetrodotoxin; D014701:Veratridine; D012964:Sodium; D014700:Verapamil