DATA ANALYSIS 1. Describe the changes in respiratory rates, tidal volumes, and minute ventilations that occurred after each of the following physiologic challenges in terms of CO, levels and their effect on respiratory drive: a. Breath holding b. Exercise 2. Which challenge caused the greatest change in respiratory rate (pre-challenge versus post challenge)? Did minute ventilation change? Did respiratory rate or tidal volume change the most relative to its resting value? Explain. 3. Some patients with severe emphysema have constant high levels of CO₂ because of inadequate ventilation. The central nervous system breathing center in these patients becomes insensitive to CO2 and more dependent on the level of O2, which is low. These patients are said to have "oxygen-dependent respiratory drive". What might happen to their breathing pattern if you gave such a person high levels of supplemental O2? Would levels of CO2 in the blood go up or down? Explain. 4. Would breathing pure O₂ change the breathing pattern given the "air hunger" experienced by athletes who have just completed a race? Why or why not? Explain.
DATA ANALYSIS 1. Describe the changes in respiratory rates, tidal volumes, and minute ventilations that occurred after each of the following physiologic challenges in terms of CO, levels and their effect on respiratory drive: a. Breath holding b. Exercise 2. Which challenge caused the greatest change in respiratory rate (pre-challenge versus post challenge)? Did minute ventilation change? Did respiratory rate or tidal volume change the most relative to its resting value? Explain. 3. Some patients with severe emphysema have constant high levels of CO₂ because of inadequate ventilation. The central nervous system breathing center in these patients becomes insensitive to CO2 and more dependent on the level of O2, which is low. These patients are said to have "oxygen-dependent respiratory drive". What might happen to their breathing pattern if you gave such a person high levels of supplemental O2? Would levels of CO2 in the blood go up or down? Explain. 4. Would breathing pure O₂ change the breathing pattern given the "air hunger" experienced by athletes who have just completed a race? Why or why not? Explain.
Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter39: The Respiratory System
Section: Chapter Questions
Problem 9RQ: The total lung capacity is calculated using which of the following formulas? residual volume + tidal...
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