Heart & Circulatory system

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Across

5. These are found in veins to prevent blood pooling (6)

7. Blood pressure at its highest when the heart contracting (8)

11. Collects de-oxygentaed blood from the body (5,6)

13. Collects oxygenated blood from the lungs (4,6)

14. Pumps de-oxygenated blood to the lungs (5,9)

15. Carries oxygenated blood into the heart (9,4)

Down

1. Check your heart beat with this (5)

2. The biggest artery in the body (5)

3. Carry blood to the heart (5)

4. Transports de-oxygenated blood away from the heart to the lungs (9,6)

6. These have thick,strong, elastic walls (8)

8. Pumps oxygenated blood to the bodies tissues (4,9)

9. Blood pressure at its lowest when the heart is relaxing (9)

10. The smallest blood vessel, one cell thick.(11)

12. Carries de-oxygenated blood to the heart (4,4)

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