Respiratory system

123456789101112131415161718192021
Across
  1. 3. Rapid and deep breathing is called
  2. 6. Covering the membrane of the lungs is
  3. 8. functions by filtering and keeping the mucus and dirt away from our lung's
  4. 9. organ made of cartilage and connects the pharynx to the trachea
  5. 11. structure which Filters the air way breathe.
  6. 12. The internal lining of the trachea has a membrane of
  7. 13. Above normal partial pressure of CO₂ is called
  8. 15. which structure does the trachea lead to in the lungs
  9. 17. In Aves, the exchange of gases occurs within the __________.
  10. 19. a common lung infection in young children and infants.
  11. 21. the tiny air sacs in the lungs
Down
  1. 1. dioxide The gas which stimulates respiration is
  2. 2. infection that inflames the air sacs in one or both lungs
  3. 4. A deficiency of oxygen at the tissue level is called
  4. 5. The anterior part of the nasal cavity is called the
  5. 7. lung condition that causes shortness of breath.
  6. 10. ___________ is located between two pleural sacs and is the central compartment of the thoracic cavity?
  7. 14. an infection of the main airways of the lungs (bronchi), causing them to become irritated and inflamed.
  8. 16. Difficulty in breathing is termed as
  9. 18. The cartilage which connects the larynx and trachea is called the
  10. 20. In Earthworms, the process of respiration is through ________.