7. Why is it necessary for veins to have valves? 8. What role is played by capillaries? 9. How big are blood capillaries? 10. What is another word for heart attack? 11. What is stroke? 12. What is another word for high blood pressure? 13. What leads to high blood pressure?

7. Why is it necessary for veins to have valves? 8. What role is played by capillaries? 9. How big are blood capillaries? 10. What is another word for heart attack? 11. What is stroke? 12. What is another word for high blood pressure? 13. What leads to high blood pressure?

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter44: The Circulatory System

Section44.5: Maintaining Blood Flow And Pressure

Problem 1SB

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7. Why is it necessary for veins to have valves?
8. What role is played by capillaries?
9. How big are blood capillaries?
10. What is another word for heart attack?
11. What is stroke?
12. What is another word for high blood pressure?
13. What leads to high blood pressure?

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