Fig. 5From: Cough reflex is additively potentiated by inputs from the laryngeal and tracheobonchial receptors and enhanced by stimulation of the central respiratory neuronsChanges in cough parameters with a change in anesthetic level. All of the parameters in response to any of the stimulus sites tended to decrease with deeper anesthesia (filled circles) compared with those at the light anesthetic level (open circles). Hash symbol indicates the difference between light and deep anesthesia was significantBack to article page