Respiratory System

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Across
  1. 5. The flap-like organ that stops food entering the windpipe.
  2. 8. The tube that allows air to pass through to the lungs.
Down
  1. 1. The passage that alows the flow of air into the lungs.
  2. 2. The boundary between the exchange of Carbon Dioxcide and Oxygen from the lungs.
  3. 3. Brings in Oxyen and takes out Carbon Dioxcide.
  4. 4. The organ that contorls the flow of air while breathing.
  5. 6. Helps the flow air towards the brochi.
  6. 7. They remove Carbon Dioxcide from the body and gives the body air.
  7. 9. Controls inhale and exhale.