Between the Right Atrium and the Right Ventricle.

Between the Right Atrium and the Right Ventricle.

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

Answer: (C)

The valve between the right atrium and the right ventricle is the tricuspid valve. It is the right-sided atrioventricular valve that opens to let blood flow from the atrium into the ventricle and closes to prevent backflow when the ventricle contracts. The mitral valve sits on the left side between the left atrium and left ventricle, the pulmonary valve sits at the exit of the right ventricle into the pulmonary artery, and the aortic valve sits at the exit of the left ventricle into the aorta.

The valve between the right atrium and the right ventricle is the tricuspid valve. It is the right-sided atrioventricular valve that opens to let blood flow from the atrium into the ventricle and closes to prevent backflow when the ventricle contracts. The mitral valve sits on the left side between the left atrium and left ventricle, the pulmonary valve sits at the exit of the right ventricle into the pulmonary artery, and the aortic valve sits at the exit of the left ventricle into the aorta.