...soso.com小儿造血、血液特点与营养性贫血正常小儿的造血特点:包括胚胎期造血和生后造血两个阶段胚胎期造血(Fetal Hematopoiesis)中胚叶造血(Mesenchymal Hematopoiesis肝脾造血(Liver/Spleen ..
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肝脏由胚胎内胚层演变而来，胚胎期肝具有重要的造血功能。
Liver origins from endoderm and is an important hematopoietic organ in embryo.
小鼠的造血和血管系统起源于胚外中胚层。胚胎期6.5-7天时在卵黄囊形成特征性的血岛结构发生向造血和内皮细胞的分化。
The hematopoietic and vascular systems of the mouse arise from extraembryonic mesoderm that migrate through primitive streak to the presumptive yolk sac between days 6.5 and 7.0 of gestation.
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