A manual of diseases of the nose and throat / by Cornelius Godfrey Coakley.

  • Coakley, Cornelius Godfrey, 1862-1934.
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: A manual of diseases of the nose and throat / by Cornelius Godfrey Coakley. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    except that over the vocal cords, is lined with ciliated columnar epithelium. The submucosa is made up of connective and elastic tissue, and contains mucous glands and some lymphatic tissue. The mucosa is very loose over the arytenoids and the ventricular bands, and this accounts for the ease with which it becomes oedematous at these places. A thick fold of mucous membrane, the ventricular band (see Plate II., Figs. 1 and 2, 6), often improperly called the false vocal cord, extends from the thyroid cartilage to the arytenoid, above and par- allel to each vocal cord. Between the vocal cord and the ventricular band on either side is a cavity called the ventricle of the larynx or the ventricle of Morgagni (see Plate II., Fig. 1, k). These extend, first, laterally, then upward to about the upper border of the thyroid cartilage. The mucous membrane lining this cavity is especially rich in mucous secreting glands, whose func- tion is thought to be the lubrication of the vocal cords. The nerves of the larynx are the superior laryngeal, which supplies the mucous membrane with sensation and innervates the crico-thyroid. The motor nerve for the remaining muscles is the recurrent laryngeal. It should be remembered that this nerve is a branch of the pneumogastric, and that on the left side it winds around the arch of the aorta, while on the right side it passes behind the subclavian artery.