What is the function of the tricuspid valve?

The tricuspid valve plays a crucial role in the heart's function by controlling blood flow between the right atrium and the right ventricle. It ensures that blood flows in a forward direction and prevents backflow into the atrium when the ventricle contracts. Specifically, during the contraction of the right ventricle, the tricuspid valve closes to stop blood from re-entering the right atrium, thus ensuring efficient movement of deoxygenated blood into the pulmonary artery for oxygenation in the lungs. This valve is essential for maintaining the proper sequence of blood flow through the heart, contributing to the overall efficiency and effectiveness of the circulatory system.