What is the main job of the circulatory system?, To control our muscles, To move blood around the body, To digest food, To help us breathe, What does the circulatory system deliver from the lungs to our cells?, Carbon dioxide, Water, Oxygen, Germs, What does blood carry from our food to give us energy?, Nutrients, Platelets, Carbon dioxide, Germs, Which are the three main parts of the circulatory system?, Heart, lungs, and stomach, Heart, blood, and blood vessels, Blood, bones, and muscles, Arteries, lungs, and veins, What is the heart?, A type of blood cell, A powerful muscular pump, A tiny blood vessel, A type of vein, Where is the heart located?, In the stomach, In the center of the chest, In the head, In the leg, About how big is the heart?, About the size of your head, About the size of your clenched fist, About the size of your foot, About the size of a coin, How many chambers does the heart have?, 2, 3, 5, 4, Which part of blood fights viruses and bacteria?, Red blood cells, White blood cells, Platelets, Plasma, Which blood cells carry oxygen from the lungs to the body?, White blood cells, Platelets, Red blood cells, Capillaries, What is the main job of platelets?, Carry oxygen, Stop bleeding by forming clots, Carry food, Fight germs, Which blood vessel carries blood away from the heart?, Artery, Vein, Chamber, Capillary, Which blood vessel carries blood back to the heart?, Vein, Artery, Capillary, Red blood cell, Which blood vessels are microscopic and very thin?, Capillaries, Arteries, Atria, Veins, Why are capillaries important?, They fight bacteria., They pump the blood., They make blood cells., They connect arteries and veins.

CIRCULATORY SYSTEM

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