Which of the following would result in an increased respiratory rate? A) A decrease of cerebrospinal fluid PO₂ B) Stimulation of chemoreceptors by an increase of PCO₂ C) An increase of cerebrospinal fluid pH D) Stimulation of baroreceptors by an increase of PCO₂

Question

Quizplus · Accepted Answer

Stimulation of chemoreceptors by an increase of PCO2 (partial pressure of carbon dioxide) would result in an increased respiratory rate. This is because high PCO2 levels in the blood indicate a need to expel more carbon dioxide from the body, which requires increased breathing to bring in more oxygen and remove more carbon dioxide. The other options (A, C, and D) do not directly affect the respiratory rate.

Which of the Following Would Result in an Increased Respiratory