Circulatory & Respiratory system

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Across
  1. 4. makes up 55% of your blood
  2. 5. fights infections and other diseases
  3. 8. tiny little branches located in your lungs
  4. 9. forms clots that stops wound from bleeding
  5. 11. the mouth and nose
  6. 12. tiny air sacs in your lungs
  7. 14. prevents food from entering the lungs
Down
  1. 1. a vein that returns deoxygenated blood from the body to the right atrium
  2. 2. the connections between veins and arteries
  3. 3. disease that has fluid filled in your alveoli
  4. 6. where the blood is made
  5. 7. hairlike structure that pushes mucus out of your trachea
  6. 9. transports air, food, and moisture from the nose and mouth.
  7. 10. a valve located between right atrium and ventricle
  8. 13. The name of the top chambers in the heart