Respiratory and Circulatory System

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Across
  1. 1. What part of the blood fights against infections
  2. 4. Smallest and most numerous blood vessels
  3. 5. Largest artery in the body
  4. 6. This side has two lobes
  5. 8. Which side of atrium and ventricle carry deoxygenated blood
  6. 10. Directly above the Trachea
  7. 13. Flap of tissue that sits beneath the tongue
  8. 15. Carry oxygenated blood to the body from the heart
  9. 16. Where the air enters the respiratory system
  10. 18. One side has two lobes, other side has three lobes
  11. 20. The only vein that carries oxygenated blood
  12. 21. What part of the blood carries nutrients, proteins, and waste products
  13. 23. Enlarges the chest cavity on inhalation
  14. 24. Where blood from the lower part of your body enters the heart
  15. 25. What part of the blood carries the oxygen
  16. 26. Commonly known as the throat
Down
  1. 2. Where does blood flow from to get to the left ventricle
  2. 3. The stoppage of blood flow in an artery
  3. 5. Tiny air sacs in the lungs
  4. 7. What leads to the alveoli
  5. 9. Infection of the main airways of the lungs
  6. 11. Carry deoxygenated blood back to the heart
  7. 12. Connects your larynx to your lungs
  8. 14. What valve in located between the right atrium and right ventricle
  9. 17. Most common respiratory disease in children
  10. 19. Where blood from the head enters the heart
  11. 22. Part of the blood that prevents bleeding out