Exam 18: Gas Exchange and Transport

Protective reflexes of the lungs include

An industrious 10-year-old swimmer has attached an extension to his snorkel tube, so that he can sit on the bottom of the ocean for a longer period of time, watching the fish of the coral reef.What problems would you expect him to have? Assuming he is successful in breathing this way for a little while, what are some of the differences he will experience compared to normal breathing?

________ is characterized by an increased airway resistance and decreased ventilation.

The variables of oxygen consumption, cardiac output, and blood oxygen content are unrelated.

Compare and contrast the pulmonary pathologies that affect alveolar ventilation and gas exchange.

For maximum efficiency in loading oxygen at the lungs,

Compare and contrast carbon monoxide (CO)poisoning, in which CO displaces oxygen from hemoglobin, and metabolic poisoning such as by cyanide.