Chapter 21 - Depth of Understanding

Discuss the differences between the upper and the lower respiratory tract with regard to infections and their causative agents.



You are informed by your hospital supervisor that you need to get a flu shot. Your co-worker had one last year and didn’t enjoy the experience. On the basis of what you have learned in this chapter, explain to her why she will have to continue getting these shots.



Describe how viruses that attack the endothelial cells of the respiratory tract can facilitate the onset of pneumonia. Make sure to include the defence mechanisms associated with the respiratory tract in your discussion.



Discuss the pathogenesis of tuberculosis, including the host defence or lack thereof.