The Circulatory System

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What is the main function of the circulatory system?
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The main function of the circulatory system is to transport blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body.
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What are the three main components of the circulatory system?
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The three main components are the heart, blood vessels, and blood.
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What is the role of the heart in the circulatory system?
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The heart pumps blood throughout the body, delivering oxygen and nutrients while removing waste products.
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What are the two types of circulation within the circulatory system?
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The two types are systemic circulation and pulmonary circulation.
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What is the difference between arteries and veins?
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Arteries carry oxygen-rich blood away from the heart, while veins carry oxygen-poor blood back to the heart.
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What is capillary function in the circulatory system?
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Capillaries allow for the exchange of oxygen, carbon dioxide, and nutrients between blood and tissues.
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What is the role of red blood cells in the circulatory system?
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Red blood cells transport oxygen from the lungs to the body and carbon dioxide from the body to the lungs.
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Which part of the heart receives oxygen-poor blood?
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The right atrium receives oxygen-poor blood from the body.
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Which part of the heart pumps oxygen-rich blood to the body?
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The left ventricle pumps oxygen-rich blood to the body.
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What is the function of the valves in the heart?
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Heart valves prevent the backflow of blood, ensuring it flows in the correct direction.
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How does the circulatory system help regulate temperature?
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The circulatory system helps regulate body temperature by adjusting blood flow to the skin.
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What is the aorta's role in the circulatory system?
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The aorta is the largest artery and carries oxygen-rich blood from the left ventricle to the rest of the body.
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What causes the 'lub-dub' sound of the heart?
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The 'lub-dub' sound is caused by the closing of the heart valves.
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How many chambers does the human heart have?
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The human heart has four chambers: two atria and two ventricles.
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What is coronary circulation?
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Coronary circulation refers to the movement of blood through the vessels supplying the heart itself.
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