Which of the following does NOT contribute to the increase of breathing rate during exercise?
A)Signals from cerebral cortex to skeletal muscles are also sent to the respiratory areas
B)Stimulation of the respiratory areas by decreasing blood concentration of oxygen and increasing blood concentration of carbon dioxide
C)A joint reflex
D)Stimulation of the respiratory areas by sensory impulses from proprioceptors

Question

Which of the following does NOT contribute to the increase of breathing rate during exercise? 
A)Signals from cerebral cortex to skeletal muscles are also sent to the respiratory areas
B)Stimulation of the respiratory areas by decreasing blood concentration of oxygen and increasing blood concentration of carbon dioxide
C)A joint reflex
D)Stimulation of the respiratory areas by sensory impulses from proprioceptors

Quizplus · Accepted Answer

During exercise, the increase in breathing rate is primarily due to neural signals and proprioceptive feedback, not directly due to changes in blood gas concentrations.

Which of the Following Does NOT Contribute to the Increase