Chapter 24 Physiology of the Respiratory System

Chapter 24  Physiology of the Respiratory System

TRUE/FALSE

1. The major factor that determines the movement of air into or out of the lungs is a pressure gradient.

ANS: T DIF: Memorization REF: Page 800 TOP: Mechanisms of Pulmonary Ventilation

2. A primary function of the respiratory system is to supply tissue with adequate oxygen and to remove carbon dioxide.

ANS: T DIF: Memorization REF: Page 800 TOP: Respiratory Physiology

3. For air to remain in the lungs, the pressure in the lungs must be equal to or less than atmospheric pressure.

ANS: T DIF: Memorization REF: Page 800 TOP: Mechanisms of Pulmonary Ventilation

4. Pulmonary ventilation refers to inspiration and the filling of the lungs.
ANS: F DIF: Memorization REF: Page 800

TOP: Mechanisms of Pulmonary Ventilation

5. During expiration, a decrease in the size of the lungs causes a direct decrease in alveolar pressure.

ANS: F DIF: Memorization REF: Page 806 TOP: Mechanisms of Pulmonary Ventilation

6. The inspiratory capacity is equal to the sum of the tidal volume and the inspiratory reserve volume.

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Test Bank 24-2

ANS: T DIF: Memorization REF: Page 810 TOP: Pulmonary Volumes

7. The amount of air that could be forcibly expired after normal expiration is called the functional residual capacity.

ANS: F DIF: Memorization REF: Page 811 TOP: Pulmonary Volumes