PATHOLOGY

Detailed explanation-1: -Heart sounds are created from blood flowing through the heart chambers as the cardiac valves open and close during the cardiac cycle . Vibrations of these structures from the blood flow create audible sounds-the more turbulent the blood flow, the more vibrations that get created.

Detailed explanation-2: -After the atria fill with blood, the mitral and tricuspid valves open to allow the blood to flow from the atria into the ventricles. When the ventricles contract, the mitral and tricuspid valves close while the blood is pumped outward through the pulmonary and aortic valves to the lungs and body.