The receptors that are stimulated by a large drop in the blood $\mathrm { P } _ { \mathrm { O } _ { 2 } }$ level are located in
A)the respiratory center of the brain
B)carotid and aortic bodies
C)tissue capillaries
D)both b and c
E)all of the above

Question

Quizplus · Accepted Answer

The receptors that are stimulated by a large drop in the blood $\mathrm { P } _ { \mathrm { O } _ { 2 } }$ level are known as peripheral chemoreceptors and are located in the carotid and aortic bodies. These receptors are sensitive to changes in blood oxygen levels and send signals to the respiratory center in the brain to increase ventilation in order to restore oxygen levels in the blood. Capillary tissue receptors are not involved in this process.

The Receptors That Are Stimulated by a Large Drop in the Blood