hematopoietic organ

It's hematopoietic function was declined at 120 days of gestation, but still existed after birth. In addition, the period from 100 days to 120 days of gestation was an important time for the fetal spleen to change from a hematopoietic organ to immune organ.

7光镜观察小尾寒羊胎儿脾脏的结果说明，在胎儿期脾脏为造血器官，造血功能在120天时开始下降，但在出生时仍具有造血功能。

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Liver origins from endoderm and is an important hematopoietic organ in embryo.

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。

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