The Respiratory System

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Across
  1. 2. What happens to your diaphragm when you inhale
  2. 5. The tiny blood vessels that surround the alveoli.
  3. 8. The singular form of the work "bronchi".
  4. 10. The gas that is taken in by the respiratory system when you inhale.
  5. 11. The dome shaped muscle located under the lungs.
  6. 13. Small, grape like structure at the end of the bronchioles inside the lungs.
Down
  1. 1. Two smaller tubes that branch off of the trachea and distribute air into both of the lungs.
  2. 3. The gas that is released when you exhale.
  3. 4. The organ also known as your voice box.
  4. 6. Also known as the windpipe, this organ connects the pharynx to the bronchi.
  5. 7. Another name for your throat.
  6. 8. Even smaller tubes that branch off the bronchi inside the lungs. They carry oxygen to the alveoli.
  7. 9. Where air first enters the respiratory system.
  8. 12. What happens to your diaphragm when you exhale