摘要
用５６例人类胚胎甲状腺标本研究了甲状腺的组织发生过程。结果显示，５周时，甲状腺憩室位于舌根下方，由未分化的上皮细胞构成。６周时，甲状腺己下降到气管前方，由盘曲的细胞团构成。１０周时，出现原始甲状腺滤泡，以后逐渐增多。１４周后，滤泡腔内开始出现分泌物。直至２４周后，滤泡腔中才含有明显胶质。甲状腺组织发生过程有明显的个体差异，同一腺体不同部位的发育也不同步。
The histogenesis of human liver was studied with 56 embryonic speciments.The results are as follows: the hepatic diverticulum appears at 3.5 weeks of gestation , thehepatic lobule appears at 7 weeks, the portal area which is surrounded by a layer of limitingcells before birth. The hematopoietic cells appear at 6 weeks , become abundant during 11 -14 weeks , gradually decrease in number after 26 weeks , become very rare shortly beforebirth. Many apoptotic hematopoietic cells can be observed after 16 weeks
出处
《山东医科大学学报》
1997年第2期108-111,共4页
Acta Academiae Medicinae Shandong
