[Measure of nasal permeability in expertestimony].

After guoting the different origins of the post-traumatic ventilatory disorder, the author describes the working of the two valves, liminal and turbinal, which adjust, among normal man, the intranasal flow of the respiratory currents. Then, he describes anterior and posterior rhinomanometry, used furniture and measured parameters. Finally, the author gives the methodology of according to the nature of the ventilatory disorder, and the normal values of rhinomanometric parameters.