Year in Review Part 2

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Across
  1. 1. First step of heart filling with blood, the ______ relaxes letting blood into it
  2. 4. Main organ of the respiratory system
  3. 5. Type of digestion caused by chemicals
  4. 7. Carry blood towards the heart
  5. 8. Type of digestion caused by chewing
  6. 10. Heart disease where fatty deposits build up on artery walls
  7. 12. Muscle beneath lungs that expands/contracts
  8. 13. When the atria contracts blood is forced into the ________
  9. 15. Pulls on bones causing movement
  10. 19. Blood is always this color no matter what!
  11. 20. Disease of the lungs where the bronchial tubes are irritated
  12. 21. Another name for high blood pressure
  13. 22. Universal Donor
  14. 23. Speeds up the rate of a chemical reaction
  15. 24. Part of blood that carries Oxygen to cells and removes CO2
Down
  1. 1. Disease of the lungs where bronchial tubes contract quickly
  2. 2. Part of blood that helps with clotting
  3. 3. We inhale _____
  4. 6. Part of blood that fights infection
  5. 9. Carries air into each lung
  6. 11. Protects all organs and other systems as well as give support to the body
  7. 14. Universal Reciepient
  8. 16. We exhale _________
  9. 17. Carry blood away from the heart
  10. 18. Process that breaks down food into smaller molecules so that they can be absorbed by the blood