Hole's Essentials of Human Anatomy & Physiology, 12th Edition (Shier)

Chapter 16: Respiratory System

Essay Questions

1
How is the opening of the trachea protected during swallowing?
2
What causes emphysema and why does it become so difficult for the patient with emphysema to breathe?
3
Why are the cartilages of the trachea shaped like a C instead of being completely round like an O?
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