Which valve is located between the right ventricle and the pulmonary artery?

Which valve is located between the right ventricle and the pulmonary artery?

• A. Mitral valve
• B. Tricuspid valve
• C. Pulmonary valve
• D. Aortic valve

Answer: (C)

The main idea is how valves regulate unidirectional blood flow from the heart’s chambers to the lungs or the rest of the body. The valve between the right ventricle and the pulmonary artery is the pulmonary valve. It opens when the right ventricle contracts to push blood into the lungs and closes to prevent backflow into the ventricle when the ventricle relaxes. This fits with the other valves as follows: the mitral valve sits between the left atrium and left ventricle; the tricuspid valve sits between the right atrium and right ventricle; the aortic valve sits between the left ventricle and the aorta.

The main idea is how valves regulate unidirectional blood flow from the heart’s chambers to the lungs or the rest of the body. The valve between the right ventricle and the pulmonary artery is the pulmonary valve. It opens when the right ventricle contracts to push blood into the lungs and closes to prevent backflow into the ventricle when the ventricle relaxes.

This fits with the other valves as follows: the mitral valve sits between the left atrium and left ventricle; the tricuspid valve sits between the right atrium and right ventricle; the aortic valve sits between the left ventricle and the aorta.