7. Arteries carry blood A) Away from the heart B) Back to the heart 2. Veins carry blood A) Away from the heart B) Back to the heart

Did you know that the human circulatory system has an impressive architecture? Arteries are like the highways of the body, designed to transport oxygen-rich blood from the heart to various organs and tissues. Their thick, muscular walls help withstand high pressure, so they can move that life-giving blood swiftly through the system. On the flip side, veins are the reliable return routes! They carry deoxygenated blood back to the heart, often against gravity—especially in your legs. Thanks to one-way valves and the help of nearby muscles, they ensure that blood flows smoothly without backtracking, proving that the body has its own built-in delivery service!