The mucosa of the tracheobrnchial tree is directly contact with some harmful factors for human body in the resiratory air.
Some of these factors were studied on the human being and the experimental animals as follows.
(1) Cough reflex
The investigation of the locations of origin and intensity of electric stimulation to make cough on tracheodronchial mucosa were made upon normal and tracheobronchial diseases undergoing bronchoscopy. Also the brain waves produced by electric stimulation on tracheobronchial mucosa were studied from head skin and cortex directly during craniotomy patients.
(2) Absorptive function
The function of the absorpition of the tracheobronchial mucosa was observed in supravital using various staining agents by microscopic motion pictures. Relations between the movement of the cilia on the mucosa and oxygen metabolism and influence of the temperature were studied on the experimental animals.
(3) Immunity of the tracheobronchial mucosa
The local immunity of the mucosa which was obtained by whooping cough bacterium and influenza virus and influence of some medicines on the effect of immunity were studied experimentally.
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