Central chemoreceptors in the medulla oblongata directly detect changes in the pH of the

Question

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Central chemoreceptors in the medulla oblongata detect changes in the pH of the cerebrospinal fluid, which surrounds and bathes the brain and spinal cord. The pH of the blood can indirectly affect the pH of the cerebrospinal fluid, but the central chemoreceptors do not directly sense changes in blood pH. Lymph and air are not in direct contact with the central chemoreceptors in the medulla oblongata.

Central Chemoreceptors in the Medulla Oblongata Directly Detect Changes in the PH