Respiratory muscles: the vital pump.
D003964:Diaphragm / Q000502:physiology* / Q000503:physiopathology; D005221:Fatigue / Q000503:physiopathology*; D006331:Heart Diseases / Q000503:physiopathology; D006801:Humans; D007231:Infant, Newborn; D008171:Lung Diseases / Q000503:physiopathology; D009119:Muscle Contraction; D009132:Muscles / Q000502:physiology; D010101:Oxygen Consumption; D013909:Thorax / Q000502:physiology; D014939:Work of Breathing