title: Presynaptic inhibition in crustacean muscle: axo-axonal synapse.
mesh_terms: D000818:Animals; D001369:Axons / Q000502:physiology*; D003445:Crustacea; D008854:Microscopy, Electron; D009046:Motor Neurons / Q000502:physiology*; D009411:Nerve Endings / Q000166:cytology / Q000502:physiology*; D009469:Neuromuscular Junction / Q000502:physiology*; D013569:Synapses / Q000502:physiology*; D009435:Synaptic Transmission