Pitch: Heart sounds can be described as high pitched (heard best with the diaphragm of the stethoscope ... aortic and pulmonic valves. The sound produced by the closure of the aortic valve ...

The diastolic sound (S2) is the second sound heard during normal heart sounds. S2 is the "dupp" in lubb-dupp. It is made when the aortic and pulmonary ... indicate a mitral valve prolapse, in ...