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 ...

Blood flows through the heart and generates noises known as heart sounds. These noises occur due to heart valves opening and closing as the heart pumps blood. A doctor can gain valuable information by ...

The probe used in a fetal echocardiogram is called a transducer. It emits ultrasonic sound waves into your belly that create an image on the doctor’s screen. These sound waves are at a frequency that ...

Heart auscultation by primary care providers detected heart murmurs in nearly 1 in 4 individuals in a Norwegian population. While murmurs were particularly useful for detecting aortic stenosis, their ...