7. How is respiration regulated?
The respiratory rhythm center present in the medulla region of the brain is primarily responsible for the regulation of respiration. The pneumotaxic center can alter the function performed by the respiratory rhythm center by signaling to reduce the inspiration rate.
The chemosensitive region present near the respiratory center is sensitive to carbon dioxide and hydrogen ions. This region then signals to change the rate of expiration for eliminating the compounds.
The receptors present in the carotid artery and aorta detect the levels of carbon dioxide and hydrogen ions in the blood. As the level of carbon dioxide increases, the respiratory center sends nerve impulses for the necessary changes.
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