腭咽括约肌的解剖学研究

ANATOMICAL STUDY OF THE PALATOPHARYNGEAL SPHINCTER MUSCLE

本文应用60侧婴幼儿、14侧成人的头部标本,研究了围绕鼻咽腔的腭咽括约肌来源和行走方向,测量该肌前部纤维的长度、宽度和厚度,分析腭咽括约肌的功能,并针对临床应用的有关问题进行了讨论。

The specimens of velopharyngeal area in 60 sides children and 14 sides adults were dissected. The origin and course of the palato-pharyngeal sphincter muscle were studied and the length, width, thickness of their anterior fibres were measured. 26 sides (35.1%) originated from constrictor pharyngis superior, 24 sides (32,5%) originated from both of constrictor pharyngis superior and palato-pharyngeous, 16 sides (21.6%)originated from palatopharyngeous. there weren't palatopharyngeal sphincter in 8 sides. Mainly fibres that sweep forwads, then proceed medialward lie between levator veli palatini and posterior edge of hard palate. The palatopharyngeal sphinctor helps to complete palatopharyngeal closure with levator veli palatini when it makes medial novement of the lateral pharyngeal walk, In addition, the clinical application of cleft palate repairs was discussed.