Which heart valve is located between the right atrium and right ventricle?

The tricuspid valve is correctly identified as the valve that is situated between the right atrium and the right ventricle. Its primary function is to ensure that blood flows in one direction, preventing backflow from the right ventricle into the right atrium as the heart contracts. The tricuspid valve is named for its three cusps, which facilitate this one-way flow of blood.

Understanding the structure and function of the tricuspid valve is vital, especially in the context of the heart's anatomy and its overall role in the cardiovascular system. This valve helps maintain proper circulation within the heart and into the lungs, where blood gets oxygenated.

The other options refer to valves located in different areas of the heart. The aortic valve is situated between the left ventricle and the aorta, the mitral valve is located between the left atrium and the left ventricle, and the pulmonary valve is positioned between the right ventricle and the pulmonary artery. Each of these valves serves important functions in the heart's cycle but does not connect the right atrium and right ventricle like the tricuspid valve does.