Small changes in arterial PCO₂ have a ______________ effect on ventilation compared to small changes in PO₂. A)greater B)lesser C)the same D)none of the above answers are correct

Question

Quizplus · Accepted Answer

Changes in arterial PCO2 have a much larger effect on ventilation than changes in PO2. This is due to the fact that CO2 is a potent stimulator of ventilation, and small changes in arterial PCO2 can lead to significant changes in breathing rate and depth. In contrast, changes in arterial PO2 have a less dramatic effect on ventilation because the body is able to tolerate a wide range of PO2 values without a significant impact on breathing.

Small Changes in Arterial PCO2 Have a ______________ Effect on Ventilation

Small Changes in Arterial PCO₂ Have a ______________ Effect on Ventilation