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Questions, p. 126-129

Questions, p. 126-129. “Spies: Back in Circulation”. 1. The circulatory system is a ___ system. 2. Name 5 things included in the circulatory system. 3. About how many liters of blood does the human body need to stay alive? 4. The circulatory system can be compared to a ___ system.

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Questions, p. 126-129

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  1. Questions, p. 126-129 “Spies: Back in Circulation”

  2. 1. The circulatory system is a ___ system. • 2. Name 5 things included in the circulatory system.

  3. 3. About how many liters of blood does the human body need to stay alive? • 4. The circulatory system can be compared to a ___ system.

  4. 5. Discuss three ways in which the heart is protected inside the human body. • 6. One-way vessels that carry blood AWAY from the heart are known as ____.

  5. 7. The smallest, thinnest-walled blood vessels are known as ___. • 8. Once a drop of blood reaches its destination, what 2 things does it do?

  6. 9. One-way vessels that carry blood back to the heart are known as ___. • 10. If placed end to end, how long would the blood vessels in a human adult would be?

  7. 11. How many liters of blood does the human heart pump daily? • 12. How long does it take for one blood cell to enter the heart, move through the body, and then return to the heart?

  8. 13. The pocket of specialized muscle cells that keep the heart beating is known as the ___. • 14. What is the name of the artery that takes blood from the heart and then branches into smaller arteries that carry blood to all parts of the body?

  9. 15. The heart is not just a pump. It’s really like ___ ___. • 16. Each pump has an upper chamber, called the ___. • 17. Each pump has a lower chamber, called the ___.

  10. 18. The left and right sides of the heart are separated by a muscular wall called the ___.

  11. 19. The blood on the left side of the heart has come from the ___. • 20. What color is it? • 21. What is the blood loaded with?

  12. 22. The blood on the right side of the heart has come from ___. • 23. It’s job is done. What does this mean? • 24. What color does this blood seem? • 25. What is this blood carrying?

  13. 26. What are the 2 different types of circulation?

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