Spikes of smooth muscle in calcium-free solution (isolated taenia coli of the guinea pig).
D000200:Action Potentials; D000818:Animals; D002118:Calcium / Q000502:physiology*; D002432:Cecum; D003864:Depression, Chemical; D005459:Fluorides / Q000494:pharmacology; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008274:Magnesium / Q000502:physiology; D008345:Manganese / Q000494:pharmacology; D009130:Muscle, Smooth / Q000187:drug effects / Q000502:physiology*; D012996:Solutions; D013779:Tetrodotoxin / Q000494:pharmacology
D012996:Solutions; D008345:Manganese; D013779:Tetrodotoxin; D008274:Magnesium; D005459:Fluorides; D002118:Calcium