On a new method of recording the motions of the soft palate / By Harrison Allen.

  • Allen, Harrison, 1841-1897.
Date:
1884
Catalogue details

Licence: Public Domain Mark

Credit: On a new method of recording the motions of the soft palate / By Harrison Allen. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    palate on the air of expiration; 3d, by the degrees of force exerted by the muscles themselves. Methods of Inspection.—These include the observa- tion of J. Hilton,^ who, in a case of acquired defect of the face, due to the former presence of an osseous tumor, describes the position of the palate during the formation of letters and words as follows:— Complete utterance occurs only during expira- tion; and whilst repeating the alphabet the soft palate rises at the beginning and again descends at the termination of each letter or expiration; the sides of the pharynx also slightly approximate. The louder the voice, the more apparent are these actions in the palate and the pharynx. The extent of this adapta- tion in the ordinary voice resembles that which occurs in the mildest oral expiration; with this difference only that the palate is rather more steady in the pro- cess of articulation or formation of the letter than in simple expiration. The articulation of each of the vowels and the letter Y produces about the same extent of elevation of the palate. ... In the formation of the letters H, M, and K, the soft palate is employed actively, and especially so in the letter M.—Schuh^ has re- corded a somewhat similar case.—The motions of the salpingo-palatal fold, according to E. Zaufal,^ are most pronounced in the letter i and in e (German), but less well marked in o and u, and weakest in m and n.— In progressive facial hemiatrophy Eulenberg found ' Guy's Hosp. Rep., i, 1836, 504. * Wiener Med. Wochenschr., 1858; see Med. Times and Gaz. xix. 1859, 357. 3 Archiv fur Ohrenheilkunde, 1875, ix. 137.