Your aortic valve is part of your heart, a strong muscle that pumps blood through your body. The aortic valve controls the blood flowing out from the heart. It opens every time your heart contracts, ...
S1 and S2 are the normal heart sounds you hear when the heart valves close. Heart murmurs are extra sounds that can be heard during systole, diastole, or as a continuous sound. S3 and S4 are abnormal ...