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Each side of your heart uses an inlet valve to help move blood between the atrium and ventricle. The tricuspid valve does this between the right atrium and ventricle. The mitral valve does this between the left atrium and ventricle. The lub is the sound of the tricuspid and mitral valves closing. Each of your heart's ventricles also has an outlet valve. The right ventricle uses the pulmonary valve to help move blood into the pulmonary arteries. The left ventricle uses the aortic valve to do the same for the aorta. The DUB is the sound of the aortic and pulmonary valves closing.
Heart valves are like doors that open and close. The valves open to allow blood to flow into the next chamber of the heart or into one of the arteries, and then they shut to keep blood from flowing backwards. The tricuspid valve is on the right side of the heart and separates the right atrium and the right ventricle.Normally, the tricuspid valve opens when the right atrium contracts. This allows blood to flow down into the right ventricle.The tricuspid valve is closed when the right ventricle contracts, allowing blood to flow out to the lungs. In tricuspid regurgitation, the tricuspid valve does not close properly.eart valves are like doors that open and close. The valves open to allow blood to flow into the next chamber of the heart or into one of the arteries, and then they shut to keep blood from flowing backwards. The tricuspid valve is on the right side of the heart and separates the right atrium and the right ventricle.