title: Effects of black widow spider venom on the frog neuromuscular junction. Effects on the fine structure of the frog neuromuscular junction.
mesh_terms: D000200:Action Potentials; D008854:Microscopy, Electron; D009469:Neuromuscular Junction / Q000187:drug effects*; D013112:Spiders; D009435:Synaptic Transmission; D014688:Venoms / Q000494:pharmacology*
chemical_list: D014688:Venoms