Biology Respiratory System

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Across
  1. 2. The throat, which serves as a passageway for both air and food.
  2. 3. A chronic lung condition that causes inflammation and narrowing of the airways.
  3. 4. Smaller branches of the bronchi that lead to the alveoli.
  4. 8. The process of taking air into the lungs.
  5. 10. The tube that carries air from the nose and mouth to the lungs.
Down
  1. 1. The process of exchanging gases between the body and the environment.
  2. 4. The two main branches of the trachea that lead to the lungs.
  3. 5. The process of expelling air from the lungs.
  4. 6. A flap of cartilage that covers the trachea during swallowing.
  5. 7. A muscle that helps to expand and contract the chest cavity.
  6. 9. The voice box, located at the top of the trachea.