How is respiration regulated?
Respiratory rhythm centre, present in medulla region of brain is responsible for respiration regulation. Its function can be moderate by pneumotaxic centre, present in pons region of brain. A chemosensitive area present adjacent to rhythm centre, is highly sensitive to C02 and H+. Chemosenstive centre due to increase in C02 and H+ can signal the rhythm centre to make adjustment to eliminate these substances. Receptors associated with aortic arch and carotid artery also can recognise changes in CO2 and H+ concentration and send necessary signals to rhythm centre for remedial actions.