我们对人胚胎的造血发育包括胚肝、胚胎、骨髓、脾脏和胸腺的造血已有较详尽的研究与报道。但鉴于人胚取材的限制,早期胚胎造血的材料极难取得,故设计动物实验和应用罗斯小室作环流培养以期明确胚胎早期造血部位和造血干细胞的可能来源,以使发生学的研究更为完善。材料和方法用日龄60—70天 LACA 雌性和雄性小 We have more detailed studies and reports on the hematopoiesis of human embryos, including the hematopoiesis of embryo liver, embryo, bone marrow, spleen and thymus. However, given the limitations of human embryos, the material of early embryo hematopoiesis is extremely difficult to obtain. Therefore, animal experiments and the application of Rose chamber for circulation culture were conducted in order to clarify the possible sources of early embryonic hematopoietic cells and hematopoietic stem cells in order to make the study of genesis more perfect . Materials and Methods LACA females and males were aged 60-70 days old