PDF(Pubmed)
Abstract：
UNASSIGNED: The growth and development of the epiglottis and preepiglottic space (PES) of the human larynx as it acquires the vocal tract were investigated.
UNASSIGNED: Three newborns, one infant, four children (2, 7, 8, and 12 years old), and two adult normal larynges were investigated and compared using the whole organ serial section technique.
UNASSIGNED: The newborn PES occupied a small area just anterior to the epiglottis. It was composed of immature adipose tissue and areolar tissue. The epiglottis lay on a somewhat horizontal axis and is partially obscured behind the hyoid bone. The hyoid bone overlapped the thyroid cartilage, partially obscuring the superior thyroid notch. The newborn epiglottic cartilage was immature elastic cartilage, and the elastic fiber component was sparse. In the first 8 years of life, as the PES grew, the PES was located not only anterior to but also posterolateral and inferolateral to the epiglottic cartilage and thyroepiglottic ligament. Meanwhile, the epiglottic cartilage matured.
UNASSIGNED: In order to develop the vocal tract for speech production, it is reported that the human larynx descends as the child grows in the first 9 years of life. This study showed that the PES, occupying a small area just anterior to the epiglottis, grew and existed astride the epiglottis as the larynx descended and the vocal tract developed. Consequently, its distribution allows the epiglottis to more effectively play the role of retroflection during swallowing in order to prevent aspiration. The human speech faculty likely develops in conjunction with swallowing physiology.
UNASSIGNED: Three newborns, one infant, four children (2, 7, 8, and 12 years old), and two adult normal larynges were investigated and compared using the whole organ serial section technique.
UNASSIGNED: The newborn PES occupied a small area just anterior to the epiglottis. It was composed of immature adipose tissue and areolar tissue. The epiglottis lay on a somewhat horizontal axis and is partially obscured behind the hyoid bone. The hyoid bone overlapped the thyroid cartilage, partially obscuring the superior thyroid notch. The newborn epiglottic cartilage was immature elastic cartilage, and the elastic fiber component was sparse. In the first 8 years of life, as the PES grew, the PES was located not only anterior to but also posterolateral and inferolateral to the epiglottic cartilage and thyroepiglottic ligament. Meanwhile, the epiglottic cartilage matured.
UNASSIGNED: In order to develop the vocal tract for speech production, it is reported that the human larynx descends as the child grows in the first 9 years of life. This study showed that the PES, occupying a small area just anterior to the epiglottis, grew and existed astride the epiglottis as the larynx descended and the vocal tract developed. Consequently, its distribution allows the epiglottis to more effectively play the role of retroflection during swallowing in order to prevent aspiration. The human speech faculty likely develops in conjunction with swallowing physiology.
摘要：
■研究了人类喉在获取声带时会厌和会厌前空间（PES）的生长和发育。
■三个新生儿,一个婴儿,四个孩子（2、7、8和12岁），并使用全器官连续切片技术对两个成年正常喉进行了调查和比较。
■新生儿PES占据了会厌前的一小块区域。它由未成熟脂肪组织和乳晕组织组成。会厌位于稍微水平的轴上，并在舌骨后面部分模糊。舌骨与甲状软骨重叠,部分模糊了甲状腺上切迹。新生会厌软骨为未成熟的弹性软骨，弹性纤维组分稀疏。在生命的前8年，随着PES的增长，PES不仅位于会厌软骨和甲状腺会厌韧带的前方，而且位于后外侧和下外侧。同时,会厌软骨成熟.
■为了开发用于语音产生的声道，据报道，人类的喉会随着孩子在生命的前9年的成长而下降。这项研究表明，PES，占据了会厌前面的一小块区域，随着喉的下降和声带的发育，会厌跨性地生长和存在。因此,它的分布使会厌在吞咽过程中更有效地发挥逆反射的作用，以防止误吸。人类语言能力可能与吞咽生理学一起发展。
■三个新生儿,一个婴儿,四个孩子（2、7、8和12岁），并使用全器官连续切片技术对两个成年正常喉进行了调查和比较。
■新生儿PES占据了会厌前的一小块区域。它由未成熟脂肪组织和乳晕组织组成。会厌位于稍微水平的轴上，并在舌骨后面部分模糊。舌骨与甲状软骨重叠,部分模糊了甲状腺上切迹。新生会厌软骨为未成熟的弹性软骨，弹性纤维组分稀疏。在生命的前8年，随着PES的增长，PES不仅位于会厌软骨和甲状腺会厌韧带的前方，而且位于后外侧和下外侧。同时,会厌软骨成熟.
■为了开发用于语音产生的声道，据报道，人类的喉会随着孩子在生命的前9年的成长而下降。这项研究表明，PES，占据了会厌前面的一小块区域，随着喉的下降和声带的发育，会厌跨性地生长和存在。因此,它的分布使会厌在吞咽过程中更有效地发挥逆反射的作用，以防止误吸。人类语言能力可能与吞咽生理学一起发展。
