However, a murmur can also be caused by an issue within the heart, like a regurgitation (backflow) of blood or an obstruction. A stethoscope is used to listen to heart sounds. It has two earpieces ...

Note that heart sounds are discrete, short audible events from a specific cause — different from a heart murmur. A murmur is due to turbulence of blood flow and can, at times, encompass all of ...

A murmur is either systolic, diastolic or continuous throughout systole and diastole. Remember that systole occurs between the S1 and S2 heart sounds, whereas diastole occurs between S2 and S1.