摘要
用56例人类胚胎肝脏标本研究了肝脏的组织发生过程。结果显示,3.5周时,肝憩室已经出现,7周时,出现肝小叶,12周时,出现由界板环绕的门管区。直到出生前,肝板均由多层细胞构成。6周时,出现造血细胞,15~24周时最为密集,26周后逐渐减少,出生前己非常稀疏。16周后造血灶内有大量造血细胞凋凋亡。
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105-107,共3页
Acta Academiae Medicinae Shandong