The valve tricuspide, also known as the tricuspid valve, is a heart valve located between the right atrium and the right ventricle. It has three flaps, or cusps, that open and close to regulate blood flow. When the right atrium fills with blood, the valve opens to allow blood to flow into the right ventricle, and it closes to prevent backflow when the ventricle contracts. This valve plays a crucial role in the heart's function, ensuring efficient circulation of blood to the lungs for oxygenation. Proper functioning of the tricuspid valve is essential for maintaining overall cardiovascular health and preventing conditions like tricuspid regurgitation.