An increased hydrogen ion concentration in the cerebrospinal fluid results in a(n) ________ respiratory rate.
A) erratic
B) decreased
C) unchanged
D) increased

Question

Quizplus · Accepted Answer

An increased hydrogen ion concentration in the cerebrospinal fluid is detected by the respiratory center in the brainstem, which stimulates an increase in respiratory rate to eliminate excess carbon dioxide (which can combine with water to form carbonic acid, contributing to the increase in hydrogen ions). Therefore, the correct choice is D, increased respiratory rate.

An Increased Hydrogen Ion Concentration in the Cerebrospinal Fluid Results