![]() ![]() It is the entire process of producing RBCs in the bone marrow in response to erythropoietin.Hematopoiesis is only found in the following:īone marrow consists of an equal amount of fat and hematopoietic tissue: By 4 years of age, fat cells begin to appear in the long bones.At birth, the liver and spleen stop the process of hematopoiesis.Bone marrow (Practically all the bones).Fetal marrow is filled with RBCs during hematopoiesis.Now bone marrow is the major site for hematopoiesis.Around the 7th month of fetal life, hematopoiesis shifts from the liver to the bone marrow.From 3rd to 6th months spleen also form RBCs.Nucleated RBCs migrate to the liver until 7 months.(It declines by 6 weeks and ends by 2 months) The various sites of erythropoiesis (Hematopoiesis): Stages of human development In the case of increased demand, intramedullary hematopoiesis may be seen. ![]()
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