Chapter 11 Egan's questions with correct answers

1. What is the primary function of the lungs? a. Convert angiotensin I to angiotensin II. b. Filter pulmonary blood. c. Gas exchange. d. Remove carbon monoxide (CO). Answer Gas exchange. 2. During each cycle of normal resting ventilation, a volume of gas is moved into and out of the respiratory tract. This cyclical volume is called the: a. inspiratory reserve volume (IRV). b. vital capacity (VC). c. residual volume (RV). d. tidal volume (VT). Answer tidal volume (VT). 3. Which of the following pressures vary throughout the normal breathing cycle? 1. Alveolar pressure (Palv) 2. Body surface pressure (Pbs) 3. Mouth pressure (Pao) 4. Pleural pressure (Ppl) a. 1, 2, 3, and 4 b. 2, 3, and 4 only c. 2 and 4 only d. 1 and 4 only Answer 1 and 4 only