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Human Physiology, 7/e
Stuart I Fox, Pierce College
Respiratory Physiology

Critical Thinking Exercises

Please answer all questions



1

The air pollution in cities with heavy auto traffic can be as dangerous as smoking a pack of cigarettes each day. What diseases would be more common in these cities?
2

Keeping in mind oxygen toxicity, nitrogen narcosis, and the role of carbon dioxide in the regulation of ventilation, what gases do you think you should use in a scuba tank to be used in a deep dive?
3

People with respiratory or heart problems are often urged to stay inside in cities on days when the air is very polluted. Why?
4

The vicunas, relatives of lamas, are found in nature only in the high Andes of South America. Do you think their hemoglobin's oxygen affinity would be more like that of a typical adult human, hemoglobin-S, or hemoglobin-F?








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