The Primary Stimuli That Cause the Respiratory Center to Initiate

Multiple Choice

The primary stimuli that cause the respiratory center to initiate inspiration are

A) decreases in both carbon dioxide and hydrogen ion concentrations in the blood
B) a decrease in carbon dioxide and an increase in hydrogen ion concentrations in the blood
C) increases in both carbon dioxide and hydrogen ion concentrations in the blood
D) an increase in carbon dioxide and a decrease in hydrogen ion concentrations in the blood
E) a decrease in oxygen concentration and a decrease in pH in the blood