Spikes of intestinal smooth muscle in calcium-free solution.
D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D002118:Calcium / Q000502:physiology*; D002432:Cecum; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008274:Magnesium; D008345:Manganese / Q000494:pharmacology; D009130:Muscle, Smooth / Q000502:physiology*; D012964:Sodium / Q000502:physiology; D013779:Tetrodotoxin / Q000494:pharmacology
D008345:Manganese; D013779:Tetrodotoxin; D012964:Sodium; D008274:Magnesium; D002118:Calcium