Which vessel carries oxygen-poor blood from the right ventricle to the right lung?

Which vessel carries oxygen-poor blood from the right ventricle to the right lung?

• A. Right Pulmonary Veins
• B. Left Pulmonary Arteries
• C. Superior Vena Cava
• D. Right Pulmonary Artery

Answer: (D)

Pulmonary circulation: the right ventricle pumps deoxygenated blood into the pulmonary trunk, which splits into the right and left pulmonary arteries to send blood to the lungs. The right pulmonary artery specifically carries this oxygen-poor blood to the right lung to pick up oxygen. The other vessels have different roles: pulmonary veins return oxygenated blood from the lungs to the left atrium, the superior vena cava brings systemic venous blood to the right atrium, and the left pulmonary artery goes to the left lung. So the vessel delivering blood from the right ventricle to the right lung is the right pulmonary artery.

Pulmonary circulation: the right ventricle pumps deoxygenated blood into the pulmonary trunk, which splits into the right and left pulmonary arteries to send blood to the lungs. The right pulmonary artery specifically carries this oxygen-poor blood to the right lung to pick up oxygen. The other vessels have different roles: pulmonary veins return oxygenated blood from the lungs to the left atrium, the superior vena cava brings systemic venous blood to the right atrium, and the left pulmonary artery goes to the left lung. So the vessel delivering blood from the right ventricle to the right lung is the right pulmonary artery.