Figure 23-2 Mechanics of Ventilation

Use Figure 23-2 to answer the following questions:
-What pressure will be present in the space labeled "4"?
A) alveolar pressure
B) interpleural pressure
C) subalveolar pressure
D) intrapleural pressure
E) atmospheric pressure

Question

Figure 23-2 Mechanics of Ventilation
 
Use Figure 23-2 to answer the following questions:
-What pressure will be present in the space labeled "4"?
A) alveolar pressure 
B) interpleural pressure 
C) subalveolar pressure 
D) intrapleural pressure 
E) atmospheric pressure

Quizplus · Accepted Answer

The pressure present in the space labeled "4" is intrapleural pressure. This is the pressure within the pleural cavity, which is located between the parietal and visceral pleurae. It is usually slightly negative relative to atmospheric pressure, which helps keep the lungs inflated.