Which vessel returns deoxygenated blood from the lower body to the right atrium?

Which vessel returns deoxygenated blood from the lower body to the right atrium?

• A. Inferior Vena Cava
• B. Superior Vena Cava
• C. Ascending Aorta
• D. Pulmonary Trunk

Answer: (A)

Blood from the lower body returns to the heart through the inferior vena cava, a large vein that drains deoxygenated blood from the pelvis, abdomen, and legs and empties it into the right atrium. From there, blood moves on to the right ventricle and then to the lungs for oxygenation. The superior vena cava handles the upper body, the ascending aorta carries oxygen-rich blood away from the heart, and the pulmonary trunk carries deoxygenated blood from the right ventricle to the lungs. So the vessel that returns deoxygenated blood from the lower body to the right atrium is the inferior vena cava.

Blood from the lower body returns to the heart through the inferior vena cava, a large vein that drains deoxygenated blood from the pelvis, abdomen, and legs and empties it into the right atrium. From there, blood moves on to the right ventricle and then to the lungs for oxygenation. The superior vena cava handles the upper body, the ascending aorta carries oxygen-rich blood away from the heart, and the pulmonary trunk carries deoxygenated blood from the right ventricle to the lungs. So the vessel that returns deoxygenated blood from the lower body to the right atrium is the inferior vena cava.