Which vessel drains blood from the lower body into the heart?

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Multiple Choice

Which vessel drains blood from the lower body into the heart?

In systemic circulation, returning blood from the lower body to the heart uses a large vein that collects blood from the pelvis, abdomen, and legs and delivers it to the right atrium. This vessel is the inferior vena cava. It carries deoxygenated blood back to the heart to be sent to the lungs for oxygenation, completing the systemic return loop. Pulmonary veins bring oxygenated blood from the lungs to the heart, not from the lower body. The aorta carries blood away from the heart to the body, not back to the heart. Venules are tiny vessels that feed into veins but do not alone drain the entire lower body into the heart.

In systemic circulation, returning blood from the lower body to the heart uses a large vein that collects blood from the pelvis, abdomen, and legs and delivers it to the right atrium. This vessel is the inferior vena cava. It carries deoxygenated blood back to the heart to be sent to the lungs for oxygenation, completing the systemic return loop.

Pulmonary veins bring oxygenated blood from the lungs to the heart, not from the lower body. The aorta carries blood away from the heart to the body, not back to the heart. Venules are tiny vessels that feed into veins but do not alone drain the entire lower body into the heart.

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