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Chemoreceptor Journal Entry

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Chemoreceptors monitor the PaCO2, pH, and PaO2 of the arterial blood. The central chemoreceptors sense changes in the pH of CSF by monitoring arterial blood indirectly. They are extremely sensitive to the hydrogen ion concentration in CSF. When central chemoreceptors sense the increase in hydrogen ion concentration and decrease in pH, the respiratory center is stimulated to increase the depth and rate of ventilation. The increased ventilation returns the pH back to normal. The central chemoreceptors are extremely sensitive to slight changes in the pH of cerebral spinal fluid. The peripheral chemoreceptors are primarily sensitive to O2 levels in the arterial blood. They are kind of sensitive to the changes in pH and PaCO2. When PaCO2

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