喉部存在病变时,必然对下呼吸道有各种影响。作者就气管切开和喉全切除的病例,从下呼吸道的纤毛运动、细菌学及免疫学等方面,研究了下呼吸道的病理生理。作者介绍了 Weil(1963) 测量的人体气管、支气管各段的直径与周径。又介绍了 Kilburn(1970) 测量的各支气管粘液的流动速度。为了弄清各支气管粘液的流动速度是否取决于该部的纤毛运动,作者以正常成年犬做实验,将其喉、肺 Throat lesions, the inevitable impact on the lower respiratory tract. The authors studied the pathophysiology of the lower respiratory tract in terms of tracheotomy and total laryngectomy cases in terms of ciliary motion, bacteriology and immunology in the lower respiratory tract. The authors describe the diameter and circumference of the human trachea and bronchial segments measured by Weil (1963). In turn, the flow velocity of each bronchial mucus measured by Kilburn (1970) is introduced. In order to find out whether the flow rate of bronchial mucus depends on the ciliary motility of the department, the author experiments with normal adult dogs to treat the larynx and lung