Across
- 2. carries blood to the heart
- 3. largest artery in the body
- 5. occurs when the blood flow to a part of the brain is cut off
- 6. liquid part of blood
- 9. the top number of blood pressure
- 11. pumps blood from the heart to the rest of the body
- 12. start the process of blood clotting
- 13. smallest blood vessels in the body
- 17. throat
- 20. repetitive, nonstop exercise that raises breathing and heart rate
- 21. can be caused by a lack of iron in the blood
Down
- 1. tiny hairlike structures that are in constant motion
- 4. disorder in which air passages become narrower than normal
- 7. receives blood entering the heart and pumps it to the ventricle
- 8. blood pressure that is constantly higher than normal
- 10. pathway through which air moves from the pharynx into the chest
- 14. universal recipient
- 15. carries blood away from the heart
- 16. respiratory disorder in which alveoli lose the ability to expand and contract
- 18. tiny sacs
- 19. breathe out