Respiratory System

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Across
  1. 2. where the gas exchange takes place at the end of the bronchioles
  2. 4. the muscle that pulls and pushes against the lungs as we inhale and exhale
  3. 7. carry out the exchange of gases as we breath
  4. 8. part of the respiratory and digestive systems because both food and air pass it
  5. 9. the smallest air passageways coming off of the bronchi
  6. 10. a virus of the Respiratory System
  7. 12. Asthma, bronchitis, emphysema, and COPD are all what type of illness?
  8. 14. passageway leading from the trachea to the lungs
  9. 15. is moisten, warmed, and filtered as it enters the body
Down
  1. 1. can lead to lung cancer
  2. 3. closes when food passes by
  3. 5. the diaphragm ______the thoracic cavity from abdominal cavity
  4. 6. the part of the respiratory system that produces sound
  5. 7. an uncontrolled growth of abnormal cells.
  6. 11. the primary _______ of the respiratory system is to take in O2 and give off CO2
  7. 13. connects the larynx to the right and left bronchus