. To function properly, the body maintains a blood pH of 7.4. When too much carbon dioxide is dissolved in your blood, your blood pH drops. Chemoreceptors in the aorta and carotid artery detect the pH change and send nerve impulses to the respiratory control center in the brain to increase the rate of breathing. Faster breathing removes excess carbon dioxide from the blood and blood pH levels return to normal. a. This scenario is an example of positive or negative feedback?
b. The STIMULUS in this scenario is:
c. The RECEPTOR in this scenario is:
d. The EFFECTOR in this scenario is:
e. The RESPONSE in this scenario is: