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 Respiratory and Circulatory Systems 14 Flashcards |
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What are the two main stages of the breathing process in the respiratory system? |
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Inhalation and exhalation. |
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Fill in the blank: The lungs expel ___ during exhalation. |
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Carbon dioxide |
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How does the circulatory system contribute to the transport of nutrients in the body? |
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It circulates blood, which carries digested food, oxygen, and waste to and from cells. |
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What is the primary function of capillaries in the circulatory system? |
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They allow the exchange of nutrients, oxygen, carbon dioxide, and waste products between blood and tissues. |
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Fill in the blanks: The upper chambers of the heart are called the ___, while the lower chambers are known as the ___. |
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Auricles; ventricles |
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Short Answer: Describe the role of blood in the circulatory system. |
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Blood serves as a medium for transporting oxygen, nutrients, carbon dioxide, and waste products throughout the body. |
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What is the average heart rate, and why is this rate significant? |
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The average heart rate is about 72 beats per minute, which is significant for maintaining adequate blood circulation and oxygen delivery to tissues. |
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