Where are the chemoreceptors located that are sensitive to low oxygen or high acid levels in the blood?

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The chemoreceptors that are sensitive to low oxygen or high acid levels in the blood are located in the carotid and aortic arteries. These chemoreceptors are called peripheral chemoreceptors and are activated when they sense changes in blood pH, oxygen levels, or carbon dioxide levels. They send signals to the brain, specifically the medulla in the brainstem, which triggers adjustments in the breathing rate and depth to help restore normal blood gas levels. The other choices do not house the peripheral chemoreceptors.

Where Are the Chemoreceptors Located That Are Sensitive to Low