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General Medicine General 9be54d08

Concerning the central chemoreceptors, True is:

A
They are located near the dorsal surface of the medulla
B
They respond to both the PCO2 and the PO2 of the blood
C
They are activated by changes in the pH of the surrounding extracellular fluid
D
For a given rise in PCO2, the pH of cerebrospinal fluid falls less than that of blood

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