The factor in the arterial blood that has the largest effect on increasing the rate of respiration is
A)an increase in the hydrogen ion concentration in the kidneys
B)an increase in the hydrogen ion concentration in the arterial blood
C)any decrease in the partial pressure of carbon dioxide
D)any decrease in oxygen's partial pressure
E)the detection of CO₂ by central chemoreceptors

Question

Quizplus · Accepted Answer

An increase in the hydrogen ion concentration in the arterial blood (acidosis) is detected by peripheral chemoreceptors in the carotid and aortic bodies, which then send signals to the respiratory centers in the brainstem to increase the rate and depth of breathing. This response helps to increase the elimination of carbon dioxide (which is an acid when dissolved in water) and decrease the hydrogen ion concentration, restoring homeostasis.

The Factor in the Arterial Blood That Has the Largest