When is tricuspid valve closed

The pulmonary valve is located between the right ventricle and the pulmonary artery. Mitral valve. This valve is located between the left atrium and the left ventricle. It has only 2 leaflets.

Aortic valve. The aortic valve is located between the left ventricle and the aorta. As the heart muscle contracts and relaxes, the valves open and shut. This lets blood flow into the ventricles and atria at alternate times. Here is a step-by-step description of how the valves work normally in the left ventricle:. When the left ventricle relaxes, the aortic valve closes and the mitral valve opens.

This lets blood flow from the left atrium into the left ventricle. The left atrium contracts. This lets even more blood to flow into the left ventricle.

When the left ventricle contracts, the mitral valve closes and the aortic valve opens. This is so blood flows into the aorta and out to the rest of the body. While the left ventricle is relaxing, the right ventricle also relaxes. This causes the pulmonary valve to close and the tricuspid valve to open.

This lets blood flow into the right ventricle that was returned to the right atrium from the body. When the left ventricle contracts, the right ventricle also contracts. This causes the pulmonary valve to open and the tricuspid valve to close. This content does not have an Arabic version. Overview Tricuspid valve regurgitation Open pop-up dialog box Close. Tricuspid valve regurgitation In tricuspid valve regurgitation, shown in the heart on the right, the valve between the two right heart chambers right ventricle and right atrium doesn't close properly.

Request an Appointment at Mayo Clinic. Chambers and valves of the heart Open pop-up dialog box Close. Chambers and valves of the heart A typical heart has two upper and two lower chambers. Ebstein anomaly Open pop-up dialog box Close. Ebstein anomaly Ebstein anomaly is a rare congenital heart defect in which the tricuspid valve is incorrectly formed and positioned lower than usual in the heart. Share on: Facebook Twitter. Show references Ferri FF.

Tricuspid regurgitation. In: Ferri's Clinical Advisor Elsevier; Accessed Aug. Otto CM, et al. Journal of the American College of Cardiology. Otto CM. Etiology, clinical features, and evaluation of tricuspid regurgitation.

Holst KA, et al. Improving results of surgery for Ebstein anomaly: Where are we after cone repairs? Annals of Thoracic Surgery. Heart valve disease. National Heart, Lung, and Blood Institute. Congenital heart defects. Connolly HM expert opinion. When the left ventricle contracts, it moves blood through the aortic valve into the aorta. The aorta then provides blood to the rest of the body. The job of the valves is to move the blood through the heart.

When the two atrium chambers contract, the tricuspid and mitral valves open, which both allow blood to move to the ventricles. When the two ventricle chambers contract, they force the tricuspid and mitral valves to close as the pulmonary and aortic valves open.

The blood that is meant to leave the ventricles to travel to the body is supposed to be prevented from flowing in the wrong direction by the parts of the aortic and pulmonary valves called the cusps.

The cusps help the valves create a tight seal, which helps blood flow in the correct direction. Most heart valve disease occurs in the valves on the left side of the heart — the aortic valve and the mitral valve. However, any heart valve can be affected by valve disease. Stenosis — When valve openings are narrow or were not formed properly at birth, blood flow can be inhibited.

This causes the valve flaps to become stiff, thicken, or fuse together.