Neurosecretory SystemsNeurosecretionPituitary Gland, PosteriorSupraoptic NucleusOxytocinInvertebrate HormonesNeurophysinsVasopressinsParaventricular Hypothalamic NucleusHypothalamusPituitary Hormones, PosteriorBrachyuraNeuropeptidesInsect HormonesNeuronsHypothalamus, AnteriorFMRFamideNerve EndingsUrotensinsMedian EminenceMilk EjectionPeriplanetaSecretory VesiclesHypothalamo-Hypophyseal SystemAction PotentialsClass II Phosphatidylinositol 3-KinasesCytoplasmic GranulesEcdysteroidsPC12 CellsFlounderChromaffin CellsAminacrinePyrrolidonecarboxylic AcidGrasshoppersAmino AlcoholsCorticotropin-Releasing HormoneArthropod ProteinsArginine VasopressinNephropidaePreoptic AreaSerotonergic NeuronsExocytosisElectric StimulationAxonsTetraethylammoniumCalciumAstacoideaMicroscopy, ElectronMembrane PotentialsElectrophysiologyPotassiumOsmosisChromaffin GranulesNervous SystemMothsHemolymphWater-Electrolyte BalanceChromograninsSynaptophysinDynorphinsHypertonic SolutionsNeurotransmitter AgentsCattleRats, Inbred StrainsEvoked PotentialsPatch-Clamp TechniquesLepidopteraNerve Tissue ProteinsCatecholaminesAplysiaSynaptic VesiclesAdenosine-5'-(N-ethylcarboxamide)Gonadotropin-Releasing HormoneTetrodotoxinBombyxCerebellar NucleiSynapsesMetamorphosis, BiologicalRats, Sprague-DawleyBiological AssayImmunohistochemistryLarvaPituitary GlandSerotoninTetraethylammonium CompoundsNorepinephrineTime FactorsOrgan Culture TechniquesDrosophila ProteinsCatsReceptors, Opioid, kappaHistocytochemistryLactationPeptidesAcetylcholineAmino Acid SequenceProtein PrecursorsRats, Long-EvansAnimals, Genetically ModifiedDrosophila