title: Enkephalin as a transmitter for presynaptic inhibition in sympathetic ganglia.
mesh_terms: D000109:Acetylcholine / Q000502:physiology; D000818:Animals; D004723:Endorphins / Q000502:physiology*; D004745:Enkephalins / Q000502:physiology*; D005728:Ganglia, Sympathetic / Q000502:physiology*; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008643:Mesentery / Q000294:innervation; D009270:Naloxone / Q000494:pharmacology; D009433:Neural Inhibition; D013569:Synapses / Q000502:physiology; D009435:Synaptic Transmission / Q000187:drug effects
chemical_list: D004723:Endorphins; D004745:Enkephalins; D009270:Naloxone; D000109:Acetylcholine