Chapter 37: Pulmonary Ventilation

Chapter 37: Pulmonary Ventilation

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

1. Which of the following lung volumes or capacities cannot be determined with a simple spirometer?
   1. Vital capacity
   2. Expiratory reserve volume
   3. Inspiratory reserve volume
   4. Tidal volume
   5. 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)

4. 5 3.0
5. 0                                                 4.5
6. 8 5
7. 10 5
8. 12 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:

1. Alveolar pressure of +2, intrapleural pressure of -8 cm H₂O
2. Alveolar pressure of -2, intrapleural pressure of -8 cm H₂O
3. Alveolar pressure of 0, intrapleural pressure of +5 cm H₂O
4. Alveolar pressure of 0, intrapleural pressure of -5 cm H₂O
5. 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?

1. Gastrocnemius
2. Internal intercostals
3. Abdominals
4. External intercostals

ANS: D