What is the name of the flap between the right ventricle of the heart and the pulmonary artery?

The flap between the right ventricle and the pulmonary artery is known as the pulmonary valve. This valve plays a crucial role in the cardiovascular system by preventing the backflow of blood into the right ventricle after it has been pumped into the pulmonary artery. When the right ventricle contracts, it sends deoxygenated blood to the lungs through the pulmonary artery, and the pulmonary valve ensures that once the blood has moved into the pulmonary artery, it does not return to the ventricle. This function is essential for proper blood circulation and efficient gas exchange in the lungs.

Other options refer to different valves with distinct locations and roles within the heart. The aortic valve is located between the left ventricle and the aorta, the tricuspid valve lies between the right atrium and the right ventricle, and the mitral valve is found between the left atrium and the left ventricle. Each valve contributes to maintaining the unidirectional flow of blood within the heart, but in this case, the pulmonary valve specifically connects the right ventricle to the pulmonary artery.