<p>''Back to [[:Category:Primary Lymphoid Tissue|Primary Lymphoid Tissue]]</p>
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Occurs within [[Foetal Liver]]
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<p>As embryological development continues haematopoiesis shifts from the yolk sac and AGM to the foetal [[Liver - Anatomy & Physiology|liver]] (and [[Spleen - Anatomy & Physiology|spleen]]). Haematopoietic areas form in the [[Liver - Anatomy & Physiology|liver]] which become the main haematopoietic organ in the body. [[Erythropoiesis|Erythropoiesis]] is the dominant process but some [[Leukopoiesis|leukopoiesis]] occurs so the foetal [[Liver - Anatomy & Physiology|liver]] can be considered a [[:Category:Primary Lymphoid Tissue| primary lymphoid organ]].</p>
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<p>For pathology of the foetal liver see [[Foetal Liver - Pathology#pathology|here]].</p>