The practice of surgery . f the parts ope-rated on by means of myotomy. Looking on a split palate, from themouth, the parts are seen hanging quiet in the fauces, with a distinctcentral gap in the velum. If the flaps be touched, they will be raisedupwards, by the action of the levatores palati muscles. If a strongerstimulus be applied, as by the rude touch of a finger, each flap is for-cibly drawn upwards and outwards, and can scarcely be distinguishedfrom the rest of the parts forming the sides of the nostrils and throat;and this is done by the action of the palato-pharyngei muscles, addedto t
The practice of surgery . f the parts ope-rated on by means of myotomy. Looking on a split palate, from themouth, the parts are seen hanging quiet in the fauces, with a distinctcentral gap in the velum. If the flaps be touched, they will be raisedupwards, by the action of the levatores palati muscles. If a strongerstimulus be applied, as by the rude touch of a finger, each flap is for-cibly drawn upwards and outwards, and can scarcely be distinguishedfrom the rest of the parts forming the sides of the nostrils and throat;and this is done by the action of the palato-pharyngei muscles, addedto that of the levatores palati. On exciting the parts situated moreposteriorly, as in the second act of deglutition, the margins of thefissure are forced together, by the action of the superior constrictormuscle of the pharynx. The main opponents of approximation instaphyloraphe are thus shown to be the levatores palati and palato-pharyngei. And Mr. Fergussons operation is planned so as to divide Fig. 85. Fig. 86. r Fig. [Figs. 85, 86. Knives employed by —Ed.] [This drawing represents Che Posterior Netres andupper surface of the Sort Palate, a. The levator pa-lati; the dark line shows whore it should he cutacross; the inner bundle of fibres of the palatc-pha-ryngeus forming the posterior pillar of the fauces;the black line indicates the place for division, c. Thepalatoglossus with the place for incision, if one shouldbe deemed necessary. The tonsil lies between thesetwo muscles, d. The tensor palati, the cartilaginousextremity of the Eustachian tube is in front of thisletter, e. The posterior extremity of the inferior tur-binated bone. /. The septum, gg. The uvula on eachside stretched apart. (From Fergusson.)—Ed.] ULCER AND EXFOLIATION OF THE PALATE. 199 and temporarily paralyze these muscles. With a knife, whose bladeis somewhat like the point of a lancet, the cutting-edge being about aquarter of an inch in extent, and the flat surface being bent semicir-cu
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