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Multiple Choice
Which of the following is not detected by chemoreceptors in the carotid and aortic bodies?
A
Carbon dioxide levels
B
Oxygen levels
C
Blood pressure
D
pH levels
Verified step by step guidance
1
Understand the role of chemoreceptors: Chemoreceptors in the carotid and aortic bodies are specialized sensory receptors that detect changes in chemical concentrations in the blood.
Identify what chemoreceptors detect: These chemoreceptors primarily monitor levels of carbon dioxide (CO2), oxygen (O2), and the pH of the blood.
Recognize the physiological importance: Monitoring CO2, O2, and pH is crucial for maintaining homeostasis, as these factors influence respiratory and cardiovascular functions.
Differentiate from other receptors: Blood pressure is primarily detected by baroreceptors, not chemoreceptors. Baroreceptors are located in similar regions but are sensitive to changes in the stretch of blood vessel walls.
Conclude the analysis: Since chemoreceptors do not detect blood pressure, it is the correct answer to the question of what is not detected by chemoreceptors in the carotid and aortic bodies.