Vagal Afferent Activities Corresponding to Respiratory Cycle in Rats

Abstract

The single action potential was recorded to determine the pattern of spontaneous vagal afferent activity corresponding to the respiratory cycle of rats. According to either the adaptibility or the responsiveness of the discharge to the respiratory cycle, the vagal afferents were classified into 5 categories. One group of the afferents discharged constantly and continuously as long as the lung deflation continued. Such activity has been reported only in rabbits.