title: Synaptic morphological changes resulting from conduction block in a medium with decreased ionic strength.
mesh_terms: D000200:Action Potentials; D000818:Animals; D001001:Anura; D004558:Electric Stimulation; D005725:Ganglia, Autonomic / Q000166:cytology / Q000378:metabolism / Q000502:physiology*; D006651:Histocytochemistry; D008751:Methylene Blue / Q000378:metabolism; D009431:Neural Conduction; D009994:Osmolar Concentration
chemical_list: D008751:Methylene Blue