Which valve is located on the right side of the heart and regulates blood flow to the lungs?

The valve that regulates blood flow from the right side of the heart to the lungs is the pulmonary valve. Specifically, this valve is situated at the exit of the right ventricle and controls the passage of deoxygenated blood into the pulmonary artery, which then carries the blood to the lungs for oxygenation. The pulmonary valve ensures that blood flows in one direction, preventing backflow into the right ventricle.

The tricuspid valve, located between the right atrium and right ventricle, regulates blood flow from the right atrium to the right ventricle. While it plays a crucial role in the overall functioning of the heart, it is not directly responsible for regulating blood flow toward the lungs.

In contrast, the aortic valve is found on the left side of the heart and controls blood flow from the left ventricle into the aorta, while the mitral valve manages the blood flow between the left chamber of the heart. Each of these valves has distinct functions, but in the context of blood flow to the lungs, the pulmonary valve is the key player.