Messner and Habeler's 1978 ascent of Mount Everest without oxygen-breathing apparatus is often described as one of the most remarkable physical accomplishments achieved by humans. Table 1 shows respiratory gas and arterial pH values measured in a resting mountaineer at sea level, Everest base camp and Everest summit. Use the differences in these values to explain how breathing regulation changes when at rest at the 3 altitudes indicated. Calculations are not required but you may wish to consider the role of central and peripheral chemoreceptors and their relationship to paCO,, minute ventilation and alveolar pO, in your response.
Messner and Habeler's 1978 ascent of Mount Everest without oxygen-breathing apparatus is often described as one of the most remarkable physical accomplishments achieved by humans. Table 1 shows respiratory gas and arterial pH values measured in a resting mountaineer at sea level, Everest base camp and Everest summit. Use the differences in these values to explain how breathing regulation changes when at rest at the 3 altitudes indicated. Calculations are not required but you may wish to consider the role of central and peripheral chemoreceptors and their relationship to paCO,, minute ventilation and alveolar pO, in your response.
Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Lauralee Sherwood
Chapter13: The Respiratory System
Section: Chapter Questions
Problem 2SQE
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