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6. At what pressure do arteries carry the blood?
- High pressure
- Unknown
- Low pressure
- Same pressure as capillaries
7. Blood flows at lower pressures in the veins than arteries.
- True
- Do not need to know
- False
- Depends on the person, so no answer
8. How does recoiling of arteries affect blood flow?
- Maintains a smooth pressure
- Has no effect on blood flow
- Increase blood flow
- Slow down blood flows
9. How do valves help the veins?
- Prevent blood mixing with arteries
- Reduced pressure of veins
- Prevent back flow of blood
- Increase blood flow
10. What 2 things do veins have that arteries dont?
- Wider lumen and thin layer of muscle
- Thick walls, wider lumen
- thick walls and valves
- FOLDED Endothelium and thin walls
11. Which blood vessel carries blood away from the heart?
- Neurones
- Arteries
- Veins
- just just flows by itself
12. Arteries have thick muscle which allows them to contract and change flow of blood. What term is used to describe this property?
- Vascocontriction
- Affinity
- Homeostasis
- Dilation
13. What does smooth endothelium allow veins to have?
- Keep a concentration gradient
- Prevent it from bursting
- To be able to reduce friction
- Reduced distance for diffusion of oxygen
14. What does thin layer of muscle prevent veins from doing?
- Melting under high temperature of blood
- Contracting
- Bursting
- shrinking
15. What blood vessels do we have around cells?
- tissue fluid
- No blood vessel
- Capillaries
- Arterioles