Upper Respiratory System Crossword

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Across
  1. 1. Man's best friend
  2. 2. the flap of cartilage that keeps food from going into the lungs
  3. 3. Has a trunk
  4. 5. one function of the respiratory system is defending the respiratory system and other tissues from invasion by
  5. 7. Likes to chase mice
  6. 9. as air passes through the mouth and nose, it is ____ and moistened, so that dry, cold air does not damage the delicate lungs.
  7. 11. Large marsupial
  8. 13. the respiratory helps maintain the _ of blood
  9. 17. Large marsupial
  10. 19. Has a trunk
  11. 20. Flying mammal
  12. 23. Flying mammal
  13. 24. the two largest organs of the lower respiratory tract
  14. 25. Large marsupial
  15. 26. one function of the respiratory system is to produce ____ involved in speaking, singing, and other forms of communication
  16. 28. these tubes connect the nasal passage with the middle ear and are part of the upper respiratory system
  17. 30. if all the surfaces in the alveoli were spread out flat, they would measure between 50 and 75 square meters, about the size of half a ____ court
Down
  1. 1. Man's best friend
  2. 2. Has a trunk
  3. 4. Man's best friend
  4. 6. providing an extensive area for gas exchange between air and circulating blood
  5. 8. the bronchi are part of the ____ respiratory tract
  6. 10. one function of the respiratory system is to produce enzymes that help regulate blood pressure it is called ____ converting enzyme
  7. 12. Flying mammal
  8. 13. another name for the throat
  9. 14. Likes to chase mice
  10. 15. the tonsils are part of the ____ respiratory tract
  11. 16. account for approximately 95% of immune cells in the lungs
  12. 18. these structures, part of the immune system, are found in the back of the mouth and are part of the upper respiratory system
  13. 21. one of the functions of the respiratory system is ____ respiratory surfaces from dehydration, temperature changes, or other environmental variations
  14. 22. one function of the respiratory system is facilitating the detection of ____ stimuli by receptors in the nasal cavity
  15. 24. another name for the voice box
  16. 27. these cavities inside the head are part of the upper respiratory system and sometimes cause headaches if they get infected
  17. 29. Likes to chase mice