HornsPosterior Horn CellsAnterior Horn CellsSpinal CordNociceptorsUterusRats, Sprague-DawleyHoof and ClawPainHyperalgesiaSpinal Nerve RootsPhysical StimulationAfferent PathwaysSpinal NervesNeuralgiaNerve Fibers, UnmyelinatedLumbosacral RegionNeurons, AfferentGanglia, SpinalReceptors, Neurokinin-1Injections, SpinalCatsMustard PlantSciatic NerveHyperesthesiaPain ThresholdSynaptic TransmissionElectric StimulationSubstance PRhizotomyNeuronsTrigeminal Nucleus, SpinalCapsaicinNociceptionTrigeminal Caudal NucleusPregnancy, AnimalBeetlesSciatic NeuropathyInterneuronsAction PotentialsNerve FibersPregnancyEvoked PotentialsPain MeasurementFreund's AdjuvantEctoparasitic InfestationsExcitatory Postsynaptic PotentialsNeural InhibitionMotor NeuronsMorphineElectrophysiologyMedulla OblongataUterine Diseasesgamma-Aminobutyric AcidAnalgesicsPeripheral Nerve InjuriesDjiboutiPatch-Clamp TechniquesGlycine AgentsProto-Oncogene Proteins c-fosNaloxoneLameness, AnimalHot TemperatureFormaldehydeFoot DiseasesReceptors, N-Methyl-D-AspartateBehavior, AnimalUterine RuptureSensory Receptor CellsStrychninePruritusN-MethylaspartatePresynaptic TerminalsHindlimbImmunohistochemistrySynapsesTibial NeuropathyReceptors, Opioid, muInsemination, ArtificialRats, WistarCerebral VentriclesCalcitonin Gene-Related PeptideGlutamic AcidPeriaqueductal GraySperm TransportAxonsExcitatory Amino Acid AntagonistsPeripheral Nervous System DiseasesLigationTissue AdhesionsCarrageenanReflexEmbryo ImplantationAnimals, NewbornLitter SizeBicucullineDisease Models, AnimalInhibitory Postsynaptic PotentialsGlycineUterine Contraction