The carotid bodies contain _________ chemoreceptors that respond to changes in ________________

A.   peripheral; blood  concentrations of H+ and O2
B.   central; blood  concentrations of H+, but not CO2 and O2
C.   peripheral; cerebrospinal fluid  concentrations of H+
D.   central; cerebrospinal  concentrations of CO2
E.   peripheral; concentrations  of carbon, dust, and pollution in the lungs


A

Anatomy & Physiology

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