The autonomic nervous system is a component of the peripheral nervous system and comprises two branches: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PSNS). The SNS controls the more active responses such as increasing heart rate and blood pressure. The PSNS slows down the heart rate and aids in digestion, for example. Symptoms typically arise from abnormal responses of either the sympathetic or parasympathetic systems based on situation or environment.
symptom of Mitral valve prolapse
symptom of Mitral valve stenosis
symptom of Pulmonary valve stenosis
symptom of Tricuspid insufficiency
symptom of Pericarditis
symptom of Hypertrophic cardiomyopathy
symptom of Atrial fibrillation
symptom of Myocarditis