Exercise increases carbon dioxide levels in the blood. This affects homeostasis by decreasing blood pH. Based on this information, what message would the brain stem send to the muscle?
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A rise in carbon dioxide or a decline in oxygen levels in the blood stimulates an increase in respiratory rate and depth.
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Answer:
nervous impulses to the external intercostal muscles and the diaphragm
Explanation:
In response to a decrease in blood pH, the respiratory center (in the medulla ) sends nervous impulses to the external intercostal muscles and the diaphragm, to increase the breathing rate and the volume of the lungs during inhalation
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