Heart and Lungs

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Across
  1. 4. prevents blood from flowing back into the atrium when ventricle contracts
  2. 6. The little air sacs in the lung that
  3. 8. pumps blood into the aorta
  4. 9. receives blood from the vena cava
  5. 11. bring blood from lungs into heart
  6. 12. wind pipe
  7. 13. The small rings that hold up your wind so that it doesnt collapse
  8. 14. The small tubes that branch off into your lungs
  9. 16. The two big tubes that lead into your lungs
  10. 17. carries oxygentaed blood from heart to the body
Down
  1. 1. when you swallow, it stops luquid/food from going into your lungs
  2. 2. carries de-oxygentaed blood from the body to the lungs
  3. 3. pumps blood into the pulmonary artery
  4. 4. What you need to help you sing
  5. 5. receives the blood from the pulmonary vein
  6. 7. takes blood from heart into lungs
  7. 10. connects nose and mouth to the oesophagus
  8. 15. the vein of muscle dividing the two sides of your heart