Lessons in Laryngoscopy: Including Rhinoscopy and the Diagnosis and Treatment of Diseases of the Throat

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Baillière, 1873 - Larynogoscopy - 176 pages
 

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Page 88 - The method which I have adopted is very simple. It consists in placing a little mirror, fixed on a long handle suitably bent, in the throat of the person experimented on, against the soft palate and uvula. The party ought to turn himself towards the sun, so that the luminous rays falling on the little mirror may be reflected on the larynx. If the observer experiment on himself, he ought, by means of a second mirror, to receive the rays of the sun, and direct them on the mirror which is placed against...
Page 89 - As soon as we prepare to produce a sound, the arytenoid cartilages approach each other, and press together by their interior surfaces, and by the anterior apophyses, without leaving any space, or intercartilaginous glottis ; sometimes even they come in contact so closely as to cross each other by the tubercles of Santorini. To this movement of the anterior apophyses, that of the ligaments of the glottis corresponds, which detach themselves from the ventricles, come in contact with different degrees...
Page 94 - ... present a resistance to the air. As soon as the air has accumulated sufficiently, it parts these folds and produces an explosion. But at the same instant, by virtue of their elasticity, and the pressure from below being relieved, they meet again to give rise to a fresh explosion.
Page 106 - Sclligue, an ingenious mechanician, who was also a sufferer from laryngeal phthisis, made for his physician, an apparatus consisting of two tubes, one for throwing light on the glottis, and the other for affording a view of the image of the glottis, as reflected in a mirror placed at the guttural extremity of the instrument. There were, however, serious defects in this instrument; and the difficulties in applying it were so great, that I long since ceased to use it. . Laryngoscopy has been carefully...
Page 89 - ... the ligaments of the glottis corresponds, which detach themselves from the ventricles, come in contact with different degrees of energy, and show themselves at the bottom of the larynx under the form of an ellipse of a yellowish colour. The superior ligaments, together with the aryteno-epiglottidean folds, assist to form the tube which surmounts the glottis ; and being the lower and free extremity of that tube, enframe the ellipse, the surface of which they enlarge or diminish according as they...
Page 90 - ... contract the cavity of the larynx, and close still more its orifice ; and, on the contrary, that veiled notes, and notes of moderate power, open both so as to render any observation easy. The falsetto register especially possesses this prerogative, as well as the first notes of the headvoice*.
Page 94 - ... air. As soon as the air has accumulated sufficiently, it parts these folds and produces an explosion. But at the same instant, by virtue of their elasticity, and the pressure from below being relieved, they meet again to give rise to a fresh explosion. A series of these compressions and expansions, or of explosions, occasioned by the expansive force of the air and the reaction of the glottis, produces the voice.
Page 66 - ... faucial mirrors used for the examination of patients, with a common looking-glass, suffice for the purpose. For beginners in the art of laryngoscopy this method will afford a very useful means of training. One of the chief difficulties at first is to reflect a steady light into a patient's throat. Now, the student, after arranging his looking-glass and his lamp, may direct the light from the frontal mirror into his own open mouth as reflected in the glass. This process scarcely differs from that...
Page 67 - Czermak's apparatus, on account of the distance at which the reflector is fixed on a brass stem opposite the experimenter. For beginners in the art of laryngoscopy this method affords a very useful means of training and practice. One of the chief difficulties at first is to keep a steady light in the patient's mouth while the laryngeal mirror is being introduced. Now, the student, after arranging his looking-glass and his lamp, may direct the light from the frontal reflector into his own open mouth...
Page 94 - If we consider that the lips of this aperture, taken separately, can give no kind of sound, however we may try to make them speak, we must admit that the sounds which they give forth by their mutual action, are only owing to the explosions of the air produced by their strokes {. It is not necessary in order to obtain the explosion of sound, that the glottis should be perfectly closed each time after its opening ; it suffices that it should oppose an obstacle to the air capable of developing its elasticity.

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