1) What is the main artery in the body? a) Aorta b) Vein c) Capillaries 2) What takes blood to the heart? a) Arteries b) Veins c) Capillaries 3) What takes blood away from the heart? a) Arteries b) Veins c) Capillaries 4) What are small blood vessels that connect arteries and veins? a) Heart b) Aorta c) Capillaries 5) What is a fat-like substance that can clog arteries? a) Oxygenated blood b) Deoxygenated blood c) Cholesterol 6) What is blood with oxygen? a) Oxygenated blood b) Deoxygenated blood c) Cholesterol 7) What is blood without oxygen? a) Oxygenated blood b) Deoxygenated blood c) Cholesterol 8) What is the dome shaped muscle under the lungs? a) Diaphragm b) Trachea c) Aorta 9) What is the order that air travels through the body when breathing? a) Mouth/nose, trachea, bronchi, lungs b) Mouth/nose, lungs, trachea, bronchi

Circulatory & Respiratory System 4 - 5

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