Chemical control of respiration

The concentrations of carbon dioxide, oxygen and hydrogen ions in blood are potent stimuli of activities of the respiratory center

Excess carbon dioxide or hydrogen ions cause the respiratory center to fortify the signals to inspiratory and expiratory muscles

Oxygen acts on peripheral chemoreceptors found in aortic bodies and the carotid bodies  which in turn influence the respiratory center and transmit appropriate nervous signals to it.

There is direct chemical control of respiratory center via carbon dioxide and hydrogen ions

 


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