Ventilation is increased the most by a small A) increase in arterial PCO₂ . B) decrease in arterial PCO₂ . C) increase in arterial PO₂ . D) decrease in arterial PO₂ . E) none of these answers.

Question

Quizplus · Accepted Answer

A small increase in arterial PCO2 is a potent stimulus for increasing ventilation because it directly affects the central chemoreceptors, which are sensitive to changes in CO2 levels in the blood.

Ventilation Is Increased the Most by a Small