[X-ray-Kinematographic examinations of the movement of the velum during the process of sneezing in comparison with cough (author's transl)].

Because of X-ray examinations during the process of sneezing the report of Weber is confirmed, that the cavity of the mouth is sealed against the nose in the moment of sneezing. So sneezing can only be done through the mouth. At the same time a spcial middle phase of the velum is described, i.e. its lifting by an active contraction before the actuel exspirational thrust as an essential difference to the coughing reflex. While coughing the movement of the velum is purely passive because of the exspirational thrust. The seal between the nose and cavity of the mouth is often not complete.