ParvalbuminsNeuronsRana catesbeianaTyrosine 3-MonooxygenaseImmunohistochemistryMuscle ProteinsMusclesProto-Oncogene Proteins c-fosRats, Sprague-DawleyCell CountParaventricular Hypothalamic NucleusSubstance PNeuropeptidesHypothalamusCalciumImmunoenzyme TechniquesBrainNeurons, AfferentAmino AcidsFluorescent Antibody TechniqueRats, WistarMotor NeuronsAction Potentials