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 ...

Vesicular breath sounds are a type of breath sound. They are often soft, low-pitched sounds. Having vesicular breath sounds is normal, but changes in those sounds can be a sign of a lung condition. As ...

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 ...