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) none of the above

Question

Quizplus · Accepted Answer

Increased carbon dioxide levels in the blood stimulate chemoreceptors, leading to increased sympathetic stimulation and decreased parasympathetic stimulation of the heart, which increases heart rate and cardiac output to enhance blood flow to the lungs for gas exchange.

Increased Levels of Carbon Dioxide in the Blood Will Result