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 Human Body - The Circulatory System 40 Flashcards |
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What is the primary function of the circulatory system? |
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To transport blood, nutrients, oxygen, and waste materials throughout the body. |
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Which of the following is not one of the three main parts of the circulatory system? A) Heart B) Blood C) Lungs D) Blood vessels |
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C) Lungs |
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True or False: The heart has three chambers. |
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False. The heart has four chambers: two auricles and two ventricles. |
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Riddle: I carry oxygen to your body and remove carbon dioxide; my cells are red and I flow in tubes. What am I? |
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Blood |
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The function of the valves in the heart is to ______. |
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Ensure blood flows in one direction only. |
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What type of blood vessels carry oxygen-rich blood from the heart? |
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Arteries |
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Fill in the blank: The ______ is a muscular organ that acts like a pump to force blood throughout the body. |
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Heart |
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Which blood cells are responsible for fighting infections? |
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White blood cells (WBCs) |
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True or False: Veins have thick, elastic walls to handle high pressure. |
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False. Veins have thinner walls compared to arteries because the blood flows with less pressure. |
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Riddle: I connect arteries to veins, my walls are very thin, and I help deliver oxygen to cells. What am I? |
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Capillaries |
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What is the main role of red blood cells (RBCs)? |
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To carry oxygen from the lungs to different parts of the body and help remove carbon dioxide. |
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Fill in the blank: Blood is made up of a liquid part and different types of ______. |
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Cells |
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Which chamber of the heart receives impure blood from the body? |
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Right auricle |
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True or False: Blood vessels are only found below the skin. |
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False. Blood vessels are a network of tubes throughout the body, some parts are closer to the surface. |
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Riddle: I help stop bleeding by forming a clot when you are injured, and I am a type of cell in the blood. What am I? |
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Platelets |
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What is the process called when blood circulates between the heart and the rest of the body? |
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Circulation |
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Fill in the blank: The main artery that carries blood from the heart to the body is called the ______. |
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Aorta |
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What is the pulse rate of an average adult human? |
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72 beats per minute |
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Which blood vessels carry oxygen-deficit blood back to the heart? |
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Veins |
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True or False: The left ventricle pumps oxygen-rich blood to the lungs. |
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False. The left ventricle pumps oxygen-rich blood to the body. |
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