A person inspires dry air. The N₂ partial pressure in moist tracheal air should be A) The same as in dry inspired air because N2 does not exchange B) The same as in dry inspired air because the water vapor merely increases the total pressure C) Less than that in dry inspired air because water vapor dilutes all of the gasses D) More than that in dry inspired air because oxygen is rem oved from the tracheal air E) Unaffected by anything because N₂ is inert to bodily metabolism

Question

Quizplus · Accepted Answer

C) Less than that in dry inspired air because water vapor dilutes all of the gasses. When moist air is inhaled, the partial pressure of gases like nitrogen is reduced due to the addition of water vapor, which increases the total pressure but dilutes the other gases.

A Person Inspires Dry Air