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声门为两侧声带之间的裂隙,前端起自会厌结节下方,后界为环状软骨板前表面的粘膜,它以杓状软骨声带突为界分为前后两个部分,前声门与发音有关,后声门主要是为呼吸提供通道,因而有人将前声门称发音部,后声门称呼吸部.通过对54例成人尸体喉标本的观察发现,声门闭合状态下,上面观,发音部呈一条前后向的水平位直线,呼吸部呈一条由前下到后上再转向后方的“(?)”.下面观,发音部为前高中间低的弧线,呼吸部则呈穹顶状.声门张大状态下,上面观发音部呈等腰三角形,呼吸部则呈“(?)”形,按张开面积计算,呼吸部的面积远大于发音部的面积.从声门的构成来分析,发音部的声门壁,是具
The glottis is a fissure between the vocal cords on both sides. The anterior end begins with the epiglottis nodule below, and the posterior bound is the mucosa of the anterior surface of the annular cartilage. It is divided into anterior and posterior parts by the volar fasciculare. The anterior glottis is related to pronunciation , After the glottis is mainly to provide breathing channel, so some people will be the front glottal said pronoun, after the glottis called the breath.According to 54 adult cadaver laryngeal specimens observed found that the glottis closed state, the above view, pronunciation Department was a horizontal line before and after the straight line, the respiratory part was a from front to back and then turned to the rear (?) View below, the Department of pronunciation for the high before the middle of the low arc, the respiratory Department was dome In the state of glottic enlargement, the upper part of the sounding part is isosceles triangle and the respiratory part is “(?)” Shape, the area of the respiration part is much larger than the area of the sounding part according to the open area. Analysis, pronunciation of the glottis wall, is with