Asked by Rahul Sharma on Jun 22, 2024
Verified
Mr. Smith hypoventilates and retains too much CO2. Which of the following receptors is stimulated by an increase in CO2?
A) Irritant receptors
B) Pressure receptors
C) Osmoreceptors
D) Peripheral chemoreceptors
E) Baroreceptors
Hypoventilates
A condition where ventilation is inadequate to perform needed gas exchange, often resulting in increased blood CO2 levels.
Peripheral Chemoreceptors
Sensory receptors located in the carotid and aortic bodies that detect changes in blood chemical content, such as oxygen and carbon dioxide levels.
Baroreceptors
Sensory nerve endings in the cardiovascular system that detect changes in blood pressure and help regulate it.
- Elucidate on the physiological mechanisms activated by changes in the levels of carbon dioxide in the blood.
Verified Answer
RS
Rachael SummerhayesJun 27, 2024
Final Answer :
D
Explanation :
Peripheral chemoreceptors are stimulated by an increase in CO2 (carbon dioxide) levels in the blood, which can occur due to hypoventilation. These receptors, located in the carotid bodies and aortic bodies, respond to changes in the partial pressure of oxygen and carbon dioxide, as well as pH levels in the blood, to help regulate breathing rate and depth.
Learning Objectives
- Elucidate on the physiological mechanisms activated by changes in the levels of carbon dioxide in the blood.