Respiratory System Review

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Across
  1. 6. Tiny blood vessels that surround the alveoli to help with gas exchange.
  2. 7. The function of the respiratory system is to supply the body with _____ and remove carbon dioxide
  3. 8. The muscle that is responsible for helping us breathe by creating a vacuum.
  4. 9. Oxygen enters the body through the nose and ______.
  5. 10. Carry air from the bronchial tubes to the alveoli.
Down
  1. 1. Tiny sacs where the exchange of oxygen and carbon dioxide takes place.
  2. 2. The two tubes that branch from the trachea into the lungs.
  3. 3. When the diaphragm relaxes, _________ is forced out of the lungs.
  4. 4. The windpipe.
  5. 5. The main organ of the respiratory system.