Compléter respirationVersion en ligne respiration par kenneth thomas 1 dioxide alkalosis PO2 hypOventilation PCO2 alkalosis hydrogen acidosi PCO2 expired carbon increases Respiratory Centers Medulla oblongata Has inspiratory and expiratory control centers Pons Apneustic center and pneumotaxic center . Limits the duration of inspiration , but resp rate . Chemical control of Respiration : Via chemoreceptors in chemosensitive areas in M . O . , which are excited by and hydrogen and the peripheral chemoreceptors in the cartid and aortic bodies which are particularly sensitive to . Respiration is stimulated by an increase in , H . , high PO2 . Respiration is inhibited by a decrease in , H , high PO2 . In metabolic alkalosis ( vomiting ) the hydrogen concentration is lowered , respiration is inhibited which causes an increase in the PCO2 and thus increases the blood concentration . Hyperventilation causes respiratory : low hydrogen concentration since there is a low PCO2 . Rebreathing air increases PCO2 and returns the blood Ph to normal . ( PAPER BAG ) Respiratory acidosis Low pH of blood due to CO2 not blown off CO2 rises , ph goes down Breathing fast - - - PCO2 goes down - - - - Hydrogen goes down - - - Breathing slow - - - PCO2 goes UP - - - - - - - Hydrogen goes UP - - - - -
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