Multiple Choice
Protons are unable to pass through the blood-brain barrier, but CO2 can. As such, the chemoreceptors located in the medulla regulate the pH of cerebral interstitial fluid as a reflection of changes in the partial pressure of
A) pH.
B) CO2.
C) proton gradients.
D) electrochemical gradients.
E) O2.
Correct Answer:

Verified
Correct Answer:
Verified
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