The Human Circulatory System: 15 flashcards
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1. What is the main function of the circulatory system?
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To transport oxygen, nutrients, and waste products throughout the body.
2. What are the components of blood?
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Plasma, red blood cells, white blood cells, and platelets.
3. How many chambers does the heart have?
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Four chambers: two atria and two ventricles.
4. What is blood pressure?
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The force exerted by blood on the walls of blood vessels.
5. What can improve heart health?
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Healthy lifestyle choices such as a balanced diet and regular exercise.
6. What are red blood cells also known as?
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Erythrocytes.
7. What role do white blood cells play?
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They help fight infections and provide immunity.
8. What is the largest artery in the body?
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The aorta.
9. What do platelets do?
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They help in blood clotting to prevent excessive bleeding.
10. What is the normal heart rate for an adult?
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Approximately 72 beats per minute.
11. What is anemia?
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A condition characterized by a deficiency of red blood cells or hemoglobin.
12. How does blood maintain homeostasis?
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By regulating temperature, pH levels, and transporting hormones.
13. What is the function of arteries?
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To carry blood away from the heart.
14. What is the function of veins?
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To return blood to the heart.
15. What is the function of capillaries?
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To allow exchange of nutrients and gases between blood and tissues.
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