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Haematopoiesis - Overview (view source)
Revision as of 09:28, 28 September 2010
, 09:28, 28 September 2010→Stages
* Formation of B cells and T cells ([[Leukopoiesis#Lymphopoiesis|Lymphopoiesis]])
* Formation of B cells and T cells ([[Leukopoiesis#Lymphopoiesis|Lymphopoiesis]])
===Fetal===
==Foetal Haematopoeisis==
====Yolk Sac Phase====
====Yolk Sac Phase====
<p>Blood islands from the mesoderm form in the yolk sac early in gestation. They provide primitive erythrocytes to support the developing embryo. These blood islands also give rise to the haematopoietic stem cells.</p>
<p>Blood islands from the mesoderm form in the yolk sac early in gestation. They provide primitive erythrocytes to support the developing embryo. These blood islands also give rise to the haematopoietic stem cells.</p>
====Hepatic Phase====
====Hepatic Phase====
Haematopoeisis occurs within the [[Foetal Liver]]
====Bone marrow phase====
====Bone marrow phase====