title: Cardiac frequency: control and adjustments to alterations.
mesh_terms: D000818:Animals; D002302:Cardiac Output; D003326:Coronary Circulation; D004285:Dogs; D006321:Heart / Q000294:innervation; D006331:Heart Diseases / Q000175:diagnosis; D006339:Heart Rate; D006801:Humans; D009206:Myocardium / Q000378:metabolism; D010101:Oxygen Consumption; D010210:Papillary Muscles; D005082:Physical Exertion