Intercostal MusclesRibsDiaphragmIntercostal NervesMusclesRespiratory MusclesRespiratory MechanicsElectromyographyMuscle SpindlesPleural CavityRespirationChest PainThoracic NervesInhalationFunctional Residual CapacityMuscle ContractionPhrenic NerveDogsAbdominal MusclesRespiratory Physiological PhenomenaMuscle, SkeletalMuscle DenervationThoraxRespiratory Tract FistulaThoracic WallMyotonia CongenitaMuscle ProteinsMuscle, SmoothAirway ObstructionSternumNADH Tetrazolium ReductaseMuscle Fibers, SkeletalMuscle, Smooth, VascularElectromagnetic PhenomenaMuscle DevelopmentPressureThoracotomyMotor NeuronsElectric StimulationTidal Volume