Intercostal MusclesRibsDiaphragmIntercostal NervesMusclesRespiratory MusclesRespiratory MechanicsElectromyographyMuscle SpindlesPleural CavityRespirationThoracic NervesInhalationFunctional Residual CapacityMuscle ContractionPhrenic NerveSkinDogsAbdominal MusclesRespiratory Physiological PhenomenaMuscle, SkeletalMuscle DenervationRespiratory Tract FistulaMyotonia CongenitaMuscle ProteinsMuscle, SmoothAirway ObstructionNADH Tetrazolium ReductaseMuscle Fibers, SkeletalMuscle, Smooth, VascularThoraxSternumElectromagnetic PhenomenaMuscle DevelopmentThoracic WallPressureMotor NeuronsElectric Stimulation