Heart

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Across

2. Collects oxygenated from the lungs

3. blood cells fight infection

6. relaxation of heart chambers

9. Carries oxygenated blood to the heart

12. top chambers of heart

13. carry blood to the heart (5)

14. low blood pressure

16. biggest artery in the body

17. contraction of heart chambers

Down

1. Pumps de-oxygenated blood into lungs

4. smallest blood vessels

5. helps for blood clot

7. chronically high blood pressure

8. collects deoxygenated blood from all body

10. helps for oxygen transport

11. ..............artery gives blood to the wall of the heart

15. fluid part of blood

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