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6. How many coronary arteries are there?
7. The second circulatory system does what?
- Allows reflexes to happen
- Carries oxygenated blood around the body
- Carries deoxygenated blood to the lungs
8. The first circulatory system does what?
- Carries deoxygenated blood to the lungs and then the blood returns to the heart
- Carries oxygenated blood around the body
- Carries hormones around the body
9. What is the purpose of platelets?
- Small fragments of cells that help clot blood
- Other cells feed on them
- They carry blood to the heart
10. What is the purpose of white blood cells?
- They are part of the female reproductive system
- To help fight infection
- Carry oxygen around the body
11. What is the purpose of red blood cells?
- They help the body fight infection
- They transport oxygen from the lungs to the rest of the body
- They carry nutrients to the body
12. How does the left ventricle pump blood through the whole body?
13. How does the left atrium receive oxygenated blood from the lungs?
- Pulmonary Vein
- Capillaries
- Pulmonary Artery
14. What is the purpose of plasma?
- It is a liquid that carries nutrients, antibodies, hormones and waste
- Help the blood to clot
- Carry blood from the heart
15. How does the right atrium receive deoxygenated blood