A Decrease in Carbon Dioxide Inhibits _______, Resulting in Slower

Question

A decrease in carbon dioxide inhibits _______, resulting in slower breathing.
A) chemoreceptors
B) the phrenic center in the pons
C) the alveoli
D) capillaries in the lungs

Accepted Answer

Chemoreceptors detect changes in carbon dioxide levels in the blood and stimulate the respiratory center in the brain to increase or decrease breathing rate. When carbon dioxide levels decrease, the chemoreceptors send signals to slow down breathing, resulting in a decrease in respiratory rate.