Chapter 37 Pulmonary Ventilation

Chapter 37  Pulmonary Ventilation

Complete Chapter Questions And Answers
 

Sample Questions

1. Which of the following lung volumes or capacities cannot be determined with a simple spirometer?
A. Vital capacity
B. Expiratory reserve volume
C. Inspiratory reserve volume
D. Tidal volume
E. Functional residual capacity

ANS: E

2. Calculate the minute ventilation and the alveolar ventilation for a patient with a respiratory rate of 10 breaths/minute, a tidal volume of 600 mL, and a dead space of 150 mL.
Minute Ventilation (L/min) Alveolar Ventilation (L/min)
A. 4.5 3.0
B. 6.0 4.5
C. 8 6.5
D. 10 8.5
E. 12 10.5

ANS: B

3. Before inspiration, alveolar pressure is 0 and intrapleural pressure is -5 cm H2O. At the end of an inspiration in a healthy person, with the glottis open, these readings would be:
A. Alveolar pressure of +2, intrapleural pressure of -8 cm H2O
B. Alveolar pressure of -2, intrapleural pressure of -8 cm H2O
C. Alveolar pressure of 0, intrapleural pressure of +5 cm H2O
D. Alveolar pressure of 0, intrapleural pressure of -5 cm H2O
E. Alveolar pressure of 0, intrapleural pressure of -8 cm H2O

ANS: E

4. A 50-year-old man participates in a marathon. Which muscle(s) are being used for inspiration during the marathon?
A. Gastrocnemius
B. Internal intercostals
C. Abdominals
D. External intercostals

ANS: DD

5. Pulmonary surfactant is formed by:
A. Alveolar macrophages
B. Goblet cells
C. Type I alveolar cells
D. Type II alveolar cells

ANS: D