Right atrioventricular valve

Definition

The right atrioventricular valve, also known as the tricuspid valve, is a valve located between the right atrium and the right ventricle of the heart that prevents backflow of blood into the atrium when the ventricle contracts. It consists of three cusps or flaps that open to allow blood flow from the atrium to the ventricle and close to prevent its return.

Related terms

Right Ventricle:

The chamber of the heart that receives deoxygenated blood from the right atrium and pumps it into the lungs via the pulmonary artery.

Tricuspid Regurgitation: A condition where the tricuspid valve fails to close properly, causing blood to flow backward into the right atrium when the right ventricle contracts.

Pulmonary Valve:

The valve situated between the right ventricle and pulmonary artery that opens to allow blood to be pumped from the heart to the lungs for oxygenation and closes to prevent its return