RESPIRATORY VAGAL REFLEXES AND CARBON DIOXIDE

Abstract

The respiratory effects of vagal stimulation were studied and it was found that the frequency of the applied stimulus determines to a large extent the result. The manner in which the stretch reflexes of the lungs operate, both in quiet respiration and under the action of increased concns. CO2 was observed, and corroborated by the behaviour of the vagal reflexes when subject to various types of stimuli. Finally the possible modes of action of the effects observed, and their practical importance, are discussed.