正常说话者在吞咽、吹气及发压力辅音与某些元音时咽帆通常是完全关闭的,这些活动除吞咽外皆为获得性活动。腭裂修复后初作这些活动是有困难的,但绝大多数在婴儿期手术的患者,能学会在需要时完全关闭咽帆,不过有些患者对某些活动如发元音时则不能使咽帆完全关闭。 The normal speaker usually closes completely when swallowing, blowing in and giving pressure consonants and certain vowels, and these activities are acquired except for swallowing. It is difficult for these activities to be performed after repair of the cleft palate, but the vast majority of patients undergoing infant surgery can learn to completely close the pharyngeal saphena when needed, although some patients may not be able to use the pharyngeal saphena when certain activities include vowels Close completely.