[Ultrastructure of neuromuscular junction].
D000818:Animals; D001717:Birds; D006168:Guinea Pigs; D008116:Lizards; D008854:Microscopy, Electron; D009130:Muscle, Smooth / Q000166:cytology; D009469:Neuromuscular Junction / Q000166:cytology*; D009835:Oligochaeta; D051381:Rats