When a particular organ is constantly strained during the course of professional work, certain pathologic conditions characteristic of this particular profession develop. In singers incorrect methods of voice training and of singing, the necessity of using the voice during or after colds, neglectful or improper dealing with repeated attacks of sore throat, and inflammation of the larynx usually result in chronic catarrh of the larynx, which sooner or later impairs the functional capacity of the organ. Fortunately, nature created the vocal organ in such a way that the most vital parts of the larynx are resistant and become affected late. Experiments carried out on cadavers demonstrate that if liquid is injected into the mucosa of the larynx it spreads according to certain laws. The liquid accumulates in the interarytenoid space, forming a swelling, and it does not penetrate the true vocal cords. This fact corresponds with the
KATZ B. HYPERPLASTIC LARYNGITIS OF SINGERS. Arch Otolaryngol. 1936;24(6):764–768. doi:10.1001/archotol.1936.00640050779010
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