Which term best describes the circulation that supplies the body's tissues with oxygenated blood?

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Multiple Choice

Which term best describes the circulation that supplies the body's tissues with oxygenated blood?

The important idea is identifying which pathway delivers oxygen-rich blood to all body tissues. Systemic circulation does this by carrying oxygenated blood from the left side of the heart through the aorta and the body’s arteries to every tissue, and then returning the lower-oxygen blood back to the right side of the heart. It’s distinct from pulmonary circulation, which moves blood to and from the lungs for gas exchange. A lumen is just the hollow interior of a vessel, not a type of circulation, and pathogens are disease-causing organisms, not a blood flow pathway. So systemic circulation is the correct term.

The important idea is identifying which pathway delivers oxygen-rich blood to all body tissues. Systemic circulation does this by carrying oxygenated blood from the left side of the heart through the aorta and the body’s arteries to every tissue, and then returning the lower-oxygen blood back to the right side of the heart. It’s distinct from pulmonary circulation, which moves blood to and from the lungs for gas exchange. A lumen is just the hollow interior of a vessel, not a type of circulation, and pathogens are disease-causing organisms, not a blood flow pathway. So systemic circulation is the correct term.

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