title: Peptide neuroregulators in invertebrates.
mesh_terms: D000818:Animals; D001048:Aplysia / Q000502:physiology; D004594:Electrophysiology; D004745:Enkephalins / Q000032:analysis; D006321:Heart / Q000502:physiology; D006829:Hydra / Q000032:analysis; D007448:Invertebrates / Q000502:physiology; D008854:Microscopy, Electron; D009433:Neural Inhibition; D009489:Neurosecretion; D018377:Neurotransmitter Agents / Q000502:physiology*; D010455:Peptides / Q000502:physiology*; D013045:Species Specificity; D013329:Structure-Activity Relationship; D013373:Substance P / Q000032:analysis; D013569:Synapses / Q000378:metabolism / Q000648:ultrastructure; D009435:Synaptic Transmission
chemical_list: D004745:Enkephalins; D018377:Neurotransmitter Agents; D010455:Peptides; D013373:Substance P