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Article
June 1942

PERORAL ENDOSCOPY

Arch Otolaryngol. 1942;35(6):936-979. doi:10.1001/archotol.1942.00670010944015
Abstract

THE RESPIRATORY TRACT  Anatomic and Physiologic Considerations.—The diameters of normal and abnormal bronchi were determined by Chapman and Smith1 by the use of bronchograms. On the right side the mean diameter of normal bronchi was 4.76 mm. and of abnormal bronchi 5.33 mm. On the left side the mean diameter of normal bronchi was 4.84 mm. and of abnormal 5.61 mm. No significance was attached to the findings of slightly larger bronchi on the left side and slightly larger bronchi in men than in women. Likewise there was no significant relation found between bronchial diameter and body weight and between bronchial width and the size of the chest.Functional-emotional spasm as a cause for disturbance in swallowing has been suggested by Faulkner,2 and he also has noticed that emotional factors produce bronchial spasm or relaxation. One case was reported in detail in which thoughts of insecurity and frustration brought about

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