. Diseases of the nose and throat . Fig. 45.—Section of inferior turbinated (25 diameters), a, Stratifiedciliated epithelium. 1), Glands of submueosa. c, Sinus of erectile , Artery, e, Vein, f, Hypertrophied turbinated bone. (Authors speci-men by Bensley.) HYPERTROPHIC RHINITIS. 47 taneous resolution. In some cases the hypertrophy involves the tur-binal bone also, as shown in microscopical section (Fig. 45). Of the inferior turbinated^, all parts are about equally liable toenlargement, with possibly a predominance of tendency in the pos-terior end (Fig. 46), while in the middle turbina
. Diseases of the nose and throat . Fig. 45.—Section of inferior turbinated (25 diameters), a, Stratifiedciliated epithelium. 1), Glands of submueosa. c, Sinus of erectile , Artery, e, Vein, f, Hypertrophied turbinated bone. (Authors speci-men by Bensley.) HYPERTROPHIC RHINITIS. 47 taneous resolution. In some cases the hypertrophy involves the tur-binal bone also, as shown in microscopical section (Fig. 45). Of the inferior turbinated^, all parts are about equally liable toenlargement, with possibly a predominance of tendency in the pos-terior end (Fig. 46), while in the middle turbinated it is the anteriorend that is usually involved. The Figs. 46a and 46& give histologicalsections of portions of the anterior and posterior ends of the inferiorturbinated. Etiology.—Anything which will produce continuous partial ste-nosis in the anterior end of one nostril has a tendency to produce. v J Fig. 46.—Large masses of hypertrophied membrane on the posteriortermination of the lower turbinated bones, more or less completely rillingthe posterior nares. (After Bosworth.) turbinal hypertrophy on the same side. A little consideration willmake the reason of this plain. Inspiration of air through the nar-rowed inlet immediately produces rarefaction behind the obstruction,owing to the forcible manner in which the air is drawn through thepassage. This rarefaction means diminished atmospheric pressure,repeated with each inspiration, and, acting on the soft tissues of theturbinateds, it produces a tendency to abnormal congestion. Consequently any malformation of the front end of the septum,whether of traumatic origin or not, which has the effect of makingone nasal passage materially narrower than the other, is likely tocause a gradual, but permanent, enlargement of the turbinal tissuesbehind it. If, on the other hand, the closure of the passage from septal 48 DISEASES OF THE XASA
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