Neurokinin BNeurokinin AReceptors, Neurokinin-3TachykininsReceptors, TachykininReceptors, Neurokinin-2Substance PReceptors, Neurokinin-1KisspeptinsNeuronsArcuate NucleusNeurokinin-1 Receptor AntagonistsDynorphinsEledoisinReceptors, NeurotransmitterPhysalaeminNeurons, AfferentGonadotropin-Releasing HormoneNeuropeptidesQuinuclidinesMotor NeuronsPyrrolidonecarboxylic AcidPiperidinesGuinea PigsCapsaicinPeptide FragmentsIleumLuteinizing HormoneMuscle, SmoothRats, WistarAtropineMuscle ContractionAction PotentialsIsoindolesBenzamidesDose-Response Relationship, DrugFeedback, PhysiologicalElectric StimulationSpinal CordQuinolinesOvariectomyDopaminergic Neurons