. A compendium of the veterinary art ... . f\ These figures are taken from three cases of roaring. The upper and posterior part of the larynx is shown in each. In fig. 3. the roaring is produced by contraction of the windpipe, which may be seen by comparing it with the others: this is not a frequent cause of roaring. a the cricoid cartilage. h the arytenoid. c the epiglottis. d the windpipe. Fig. 4. A case of roaring from inflam- mation and ulceration of the glottis and epiglottis. This case is not unfrequent, though it seldom exists in such a formidable extent: it pro- ceeds from repeated sor
. A compendium of the veterinary art ... . f\ These figures are taken from three cases of roaring. The upper and posterior part of the larynx is shown in each. In fig. 3. the roaring is produced by contraction of the windpipe, which may be seen by comparing it with the others: this is not a frequent cause of roaring. a the cricoid cartilage. h the arytenoid. c the epiglottis. d the windpipe. Fig. 4. A case of roaring from inflam- mation and ulceration of the glottis and epiglottis. This case is not unfrequent, though it seldom exists in such a formidable extent: it pro- ceeds from repeated sore throats, and is generally attended with a cough. Fig. 5. sliows a case of roaring from absorption and want of power in the muscles which open the glottis on one side (here the left), so that there is an obstruction to the jjassage of the air. Instances of this descrip- tion are not unfrequent; they are usually not very severe, and often manifested only when the horse makes great exertion: there is no cough. It is now supposed that the attenu- ation of the muscles is an effect and not a cause, being thrown out of use from an affection of the nerves which supply the part. It has been found also that roaring has been produced by a diseased affection of the recurrent nerves; and we not unf're- quently find, on dissecting the windpipe of roarers, that the muscles that assist in opening the glottis present the appearance represented in our cut {Jig. 5.), the muscles on one side being powerless, and almost absorbed. It is, however, a matter of dispute, whether in these cases this appearance of the muscles is a cause or a consequence of roaring. Some contend that the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original White, James, fl. 1815-1818. London, Longman, Brown, Green, and Longmans
Size: 1270px × 1968px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1850, bookpublisherlondo, bookyear1851
