Heart murmurs can be normal or pathological. This video will first tell you about heart sounds physiology. Auscultation sites are shown in the video. This part only explains aortic stenosis and mitral regurgitation Timeline 0:00 Introduction 1:17 S1 and S2 sounds 3:26 Where to listen for these sounds 4:50 Aortic stenosis 8:26 Mitral regurgitation