What is the name of the three-leaflet valve situated between the right atrium and the right ventricle?

The valve situated between the right atrium and the right ventricle is known as the tricuspid valve. This valve is composed of three leaflets or cusps, which open to allow blood to flow from the right atrium into the right ventricle and then close to prevent blood from flowing back into the atrium during ventricular contraction. The three-leaflet design is crucial for ensuring proper closure and efficient blood flow, minimizing the risk of regurgitation.

In contrast, the bicuspid valve, also called the mitral valve, is located between the left atrium and left ventricle and has two leaflets. The aortic valve is positioned between the left ventricle and the aorta, while the pulmonic valve is located between the right ventricle and the pulmonary artery. Each of these valves plays a distinct role in the heart's circulatory function, but the tricuspid valve is specifically responsible for the blood flow between the right atrium and ventricle.