人胚胎咽垂体的形态学特征。

K Hinrichsen, P Mestres, H J Jacob
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引用次数: 0

摘要

在人类胚胎中,下丘脑囊(Rathke's育袋)起源于口腔的顶部,直到第15期形成一个宽的边缘。由于下颌弓和上颌肿胀在形成早期腭架时增强了中胚层肿块,在第17期,边缘缩小到约0.2 mm宽的裂缝。从18期到23期,在口腔顶部的中线有一个突出的乳头,后来可能会再通。不同的扫描电镜方面的咽垂体被证明。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Morphological aspects of the pharyngeal hypophysis in human embryos.

In human embryos the hypophyseal sac (Rathke's pouch) originates at the roof of the mouth until stage 15 as a broad rim. As the mandibular arch and the maxillary swelling enhance the mesodermal masses in forming the early palatal shelves the rim is reduced to a cleft of about 0.2 mm in broadness in stage 17. From stage 18 up to stage 23 there is a prominent papilla in the midline of the mouth's roof which later on may become recanalized. The different SEM-aspects of the pharyngeal hypophysis are demonstrated.

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