Why do you have a bicuspid and tricuspid valve?

The bicuspid valve (mitral valve) and tricuspid valve are essential components of the heart's anatomy, each serving to regulate blood flow between the heart's chambers. The bicuspid valve, located between the left atrium and left ventricle, allows oxygen-rich blood to flow into the ventricle while preventing backflow. The tricuspid valve, situated between the right atrium and right ventricle, performs a similar function for deoxygenated blood. Their unique structures ensure efficient circulation and maintain proper pressure within the heart.