An increase in the of arterial blood may result in respiratory centers acting to
A) decrease the rate of breathing.
B) increase the rate of breathing.
C) decrease pulmonary ventilation.
D) increase the amount of air in the anatomic dead space.
E) decrease the vital capacity.

Question

An increase in the  of arterial blood may result in respiratory centers acting to
A) decrease the rate of breathing. 
B) increase the rate of breathing. 
C) decrease pulmonary ventilation. 
D) increase the amount of air in the anatomic dead space. 
E) decrease the vital capacity.

Quizplus · Accepted Answer

An increase in the partial pressure of arterial CO2 (11ea5d49_92f3_856c_bbc4_47030a28c37b_TB6678_11) is detected by chemoreceptors in the carotid and aortic bodies, which send signals to the respiratory centers in the brainstem, causing an increase in the rate and depth of breathing (hyperventilation) to decrease CO2 levels in the blood.

An Increase in the of Arterial Blood May Result