Which heart valve is located between the right atrium and right ventricle?

The tricuspid valve is located between the right atrium and the right ventricle. Its primary function is to prevent the backflow of blood as it moves from the atrium to the ventricle during diastole (the filling phase of the heart cycle). The valve's three leaflets open to allow blood to flow through and then close to prevent regurgitation when the right ventricle contracts (during systole).

Proper functioning of the tricuspid valve is crucial for maintaining efficient blood circulation within the heart and to the lungs for oxygenation. Understanding the location and role of this valve is important for comprehending overall cardiac anatomy and physiology, especially in relation to conditions that may affect blood flow and valve function.