title: Normal spontaneous activity of the pyeloureteral system in the guinea-pig.
mesh_terms: D000818:Animals; D002395:Catecholamines / Q000494:pharmacology; D004567:Electrodes, Implanted; D005260:Female; D006168:Guinea Pigs; D007682:Kidney Pelvis / Q000502:physiology*; D008026:Ligation; D008297:Male; D009130:Muscle, Smooth / Q000502:physiology; D013779:Tetrodotoxin / Q000494:pharmacology; D013997:Time Factors; D014513:Ureter / Q000187:drug effects / Q000502:physiology*
chemical_list: D002395:Catecholamines; D013779:Tetrodotoxin