Chapter 8 | The Respiratory System
- Describe the function of these terms and describe where they are located: main bronchus, trachea, alveoli, and acinus.
- How does the structure of alveoli maximize gas exchange?
- What does FEV1/FVC measure? What factors may affect FEV1/FVC?
- What is the reason for having residual volume in the lung?
- How can a decrease in the percent of oxygen in the air affect the movement of oxygen in the body?
- If a patient has increased resistance in his or her lungs, how can this detected by a doctor? What does this mean?
- How would increased airway resistance affect intrapleural pressure during inhalation?
- Explain how a puncture to the thoracic cavity (from a knife wound, for instance) could alter the ability to inhale.
- When someone is standing, gravity stretches the bottom of the lung down toward the floor to a greater extent than the top of the lung. What implication could this have on the flow of air in the lungs? Where does gas exchange occur in the lungs?
- What would happen if no carbonic anhydrase were present in red blood cells?
- How does the administration of 100 percent oxygen save a patient from carbon monoxide poisoning? Why wouldn’t giving carbon dioxide work?
