Licence: Public Domain Mark
Credit: Outlines of human pathology / by Herbert Mayo. 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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![-small; but occasionally, in the larger bronchial cells, they are of considerable magnitude, and oblong or oval in shape. In the leather-dressers of Worcester, who have died of chro- nic bronchitis, the mucous membrane is always ulcerated. IV. Hemor7-hage. See Pulmonary Hemorrhage. V. Dilatation of the bronchi. See Pulmonary Emphy- sema. SECTION IV. The Trachea. The place of foreign bodies that slip through the larynx into the trachea, and are large enough to be detained in it, is discoverable by the pain or local uneasiness which they produce. They admit of removal by tracheotomy. The affections of the trachea are, croup, chronic inflam- mation, small pox, ulcers. I. Croup. An inflammation of the air-passages, in which the mucous membrane, of a deep vivid red, and slightly thickened,-i3 lined with an exudation of coagulable lymph. The trachea is the principal seat of the most common form of the malady ; which extends, however, over the inner sur- face of the larynx, and into the first division of the bronchi, only in diminished intensity, [u. 46.] It sometimes extends to the fauces and tonsils, and at other times is most severe in the bronchi. The false membrane, when coughed up, is re- produced, but in a less cohesive state. The disease combines two elements of danger,—fatal pyrexial action, and mecha- nical suffocation. The latter may, if necessary, be remedied by tracheotomy. When the disease begins in the larynx, in its onset it frequently resembles a common cold; but after the lapse of some hours — sometimes only after one or two days —■ the cough becomes more violent, resounding in the larynx and trachea as in a metallic tube, and with a peculiarity of](https://iiif.wellcomecollection.org/image/b21066735_0547.jp2/full/800%2C/0/default.jpg)
