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V. On the position of the vocal cords in quiet respiration of man, and on the reflex-tonus of their abductor muscles

1891; Royal Society; Volume: 48; Issue: 292-295 Linguagem: Inglês

10.1098/rspl.1890.0021

2053-9126

Felix Semon,

Voice and Speech Disorders

The investigation which forms the subject of this paper was undertaken with a view of settling, if possible, the moot question whether in man the larynx during quiet respiration plays an active rôle or not, and, if the former, what is its function ? For this purpose the author has examined, by means of graduated mirrors, the size.of the glottis during quiet respiration in fifty adult trained healthy persons, and, after death, in twenty-five adult bodies. The method of the examination and the precautions necessary to guard against possible fallacies are fully described in the paper. A comparison of the measurements thus obtained shows that in less than 20 per cent.