Increased Levels of Carbon Dioxide in the Blood Will Result

Question

Increased levels of carbon dioxide in the blood will result in decreased
A) heart rate.
B) cardiac output.
C) blood flow to the lungs.
D) parasympathetic stimulation of the heart.
E) sympathetic stimulation of the heart.

Accepted Answer

Increased carbon dioxide levels in the blood stimulate chemoreceptors, leading to increased sympathetic activity and decreased parasympathetic stimulation to increase heart rate and cardiac output to expel CO2.