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腭咽闭合(Velopharyngeal ClosureVPC)是指在吞咽、吹气或说话等动作时,腭咽腔通道的暂时性关闭而言。腭咽闭合可分为闭合完全和闭合不全二类。闭合完全是指正常人在吞咽、吹气和发大多数音时,腭咽腔能完全关闭,而闭合不全(Veloph-aryngeal Incompetency VPI)则有生理和病理二种。生理的 VPI 是指正常人在发鼻辅音和某些元音时,腭咽腔不能完全闭合,留有大小不等的间隙;病理的 VPI 是指腭裂
Velopharyngeal Closure VPC refers to the temporary closure of the velopharyngeal passage during swallowing, blowing or talking. Velopharyngeal closure can be divided into two categories of complete closure and incomplete closure. Closure completely refers to the normal person swallowing, blowing air and made most of the sound, the velopharyngeal cavity can be completely closed, and incomplete (Veloph-aryngeal Incompetency VPI) there are two physiological and pathological. Physiological VPI refers to the normal nasal consonants and some vowels, the velopharyngeal cavity can not be completely closed, leaving gaps of varying sizes; pathological VPI refers to the cleft palate