1. What is the main function of the circulatory system?, C) To control body movements, B) To transport oxygen, nutrients, and waste around the body, D) To produce hormones, A) To digest food, 2. What organ pumps blood around the body?, Lungs, Heart, Brain, Stomach, 3. Which blood vessels carry blood away from the heart?, Arteries, Veins, Capillaries, Nerves, 4. Which blood vessels carry blood back to the heart?, Arteries, Veins, Capillaries, Bronchi, 5. What do red blood cells transport?, Food, Oxygen, Hormones only, Bones, 6. What is the function of capillaries?, Pump blood, Carry blood only to the heart, Allow the exchange of oxygen, nutrients, and waste between blood and tissues, Produce blood

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