Your cardiac surgeon warns you that they might need to install an artificial valve in your heart because blood is being regurgitated into your right ventricle. The valve
they are considering replacing is your:
aortic valve.
tricuspid valve.
mitral valve.
pulmonary semilunar valve.

mitral valve

Explanation: In mitral valve regurgitation, the valve between the upper left heart chamber (left atrium) and the lower left heart chamber (left ventricle) doesn't close tightly, causing blood to leak backward into the left atrium (regurgitation).

That’s wrong

The answer is Pulmonary Semilunar Valve

Explanation: Human Anatomy and Physiology

sry

explanation: