Are chemoreceptors more sensitive to blood CO₂ levels or blood O₂ levels?

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Chemoreceptors are more sensitive to blood CO2 levels as they are responsible for detecting changes in the level of carbon dioxide in the blood, which helps regulate breathing rate and depth. In contrast, the brainstem primarily regulates blood oxygen levels through sensors called peripheral chemoreceptors. However, both CO2 and O2 levels are important in regulating breathing, and chemoreceptors can also respond to changes in oxygen levels.

Are Chemoreceptors More Sensitive to Blood CO2 Levels or Blood

Are Chemoreceptors More Sensitive to Blood CO₂ Levels or Blood