Which valve opens to allow blood from the right ventricle into the pulmonary artery?

Which valve opens to allow blood from the right ventricle into the pulmonary artery?

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

Answer: (C)

Blood is pumped from the right ventricle into the pulmonary artery through the pulmonary valve. This semilunar valve sits at the exit of the right ventricle and opens during ventricular contraction (systole) to eject blood toward the lungs, then closes to prevent backflow when the ventricle relaxes. The aortic valve handles blood moving from the left ventricle to the aorta, the mitral valve sits between the left atrium and left ventricle, and the tricuspid valve sits between the right atrium and right ventricle.

Blood is pumped from the right ventricle into the pulmonary artery through the pulmonary valve. This semilunar valve sits at the exit of the right ventricle and opens during ventricular contraction (systole) to eject blood toward the lungs, then closes to prevent backflow when the ventricle relaxes. The aortic valve handles blood moving from the left ventricle to the aorta, the mitral valve sits between the left atrium and left ventricle, and the tricuspid valve sits between the right atrium and right ventricle.