Intercostal MusclesRibsDiaphragmIntercostal NervesMusclesRespiratory MusclesRespiratory MechanicsElectromyographyMuscle SpindlesPleural CavityRespirationThoracic NervesInhalationFunctional Residual CapacityMuscle ContractionPhrenic NerveDogsAbdominal MusclesRespiratory Physiological PhenomenaMuscle, SkeletalMuscle DenervationRespiratory Tract FistulaMyotonia CongenitaMuscle ProteinsMuscle, SmoothAirway ObstructionMuscle Fibers, SkeletalNADH Tetrazolium ReductaseMuscle, Smooth, VascularThoraxSternumElectromagnetic PhenomenaMuscle DevelopmentThoracic WallPressureMotor NeuronsElectric StimulationTidal Volume