Ch 23 - The Respiratory System

1. The _____________ zone is from the nose to the bronchioles.

2. The olfactory receptors are housed in the ______________________.

3. Internally, the nose is divided by the nasal ______________.

4. The paranasal sinuses and nasolacrimal ducts drain into the _________________.

5. The ____________ is a food/air conduit located at the back of the mouth.

6. The ____________ is an air conduit only.

7. There are no tonsils in the _________________.

8. The vocal cords are located in the _______________.

9. The job of the ______________ zone is where gas exchanges occur.

10. The ________________ prevents food/liquids from entering the trachea.

11. The lining of the ________________ is ciliated.

12. There are ________ bronchi.

13. The smallest bronchioles that lead into the respiratory zone are called _____________ bronchioles.

14. The exchange of gases occurs in the ________________.

15. Air enters the lungs when they are under ______________ pressure.

16. __________ is the air exchange between the alveoli and the blood capillaries.

17. __________ is the gas exchange that occurs between the systemic capillaries & the body tissues.

18. __________ is carried in the blood bound to the hemoglobin of red blood cells.

19. The trachea is held open by _______________.

20. ________________ occurs when the body doesn’t get enough oxygen to its tissues.

21. ________________ is the accumulation of too much carbon dioxide.

22. ________________ is the permanent enlargement and destruction of alveoli.

23. ________________ is caused by a bacteria.

24. ________________ is caused by excessive mucus production in the lower respiratory passageways

25. Constricting bronchioles can cause ________________.