Heart valves are essential structures in the human heart that regulate blood flow. There are four main valves: the tricuspid valve, pulmonary valve, mitral valve, and aortic valve. These valves open and close in response to pressure changes in the heart, ensuring that blood moves in the correct direction and preventing backflow. Each valve consists of flaps called leaflets that work together to create a seal. Proper functioning of the heart valves is crucial for maintaining efficient circulation and overall heart health. When valves become damaged or diseased, they can lead to various heart conditions that may require medical intervention.