Which valve is located between the right atrium and ventricle?

The tricuspid valve is located between the right atrium and the right ventricle. Its primary function is to prevent the backflow of blood from the right ventricle into the right atrium during ventricular contraction (systole). This valve has three leaflets or cusps, which is characteristic of its structure, differentiating it from other heart valves.

In the heart anatomy, each valve plays a specific role in regulating blood flow through the chambers of the heart and into the major arteries. The pulmonary valve, located between the right ventricle and the pulmonary artery, prevents backflow into the ventricle after blood has been pumped into the pulmonary circulation. The aortic valve serves a similar function but is positioned between the left ventricle and the aorta, controlling blood flow from the heart to the systemic circulation. The bicuspid valve (also known as the mitral valve), on the other hand, is located between the left atrium and the left ventricle, ensuring blood flow from the atrium to the ventricle without backflow.

By understanding the specific locations and functions of these valves, it becomes clear why the tricuspid valve is correctly identified as the valve between the right atrium and