Question

Hematopoiesis begins during the -------------- of embryonic development
in weeks
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Answer 1

Answer:

Explanation:

Haematopoiesis. Hepatic haematopoiesis is a feature of the embryonic and fetal liver of mammals, including humans. The yolk sac is the initial site of haematopoiesis from primitive progenitor cells. Colonization of the liver by definitive erythroid-myeloid progenitor cells begins at about 6 weeks (10 mm embryo).

Answer 2

The yolk sac is the initial site of haematopoiesis from primitive progenitor cells. Colonization of the liver by definitive erythroid-myeloid progenitor cells begins at about 6 weeks (10 mm embryo).