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*[[Haematopoiesis#Hepatic Phase|The Foetal Liver]]
 
*[[Haematopoiesis#Hepatic Phase|The Foetal Liver]]
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Secondary (or peripheral) lymphoid tissues or secondary lymphoid organs provide a site for immune responses to occur and are populated by relatively mature [[Lymphocytes#T cells|T cells]] and [[Lymphocytes#B cells|B cells]], [[Macrophages|macrophages]] and dendritic cells; each tissue seems to be preferentially populated by lyphocyte types that specialise in the antigens that are most likley to be presented at that site. The secondary lymphoid tissues are:
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Secondary (or peripheral) lymphoid tissues or secondary lymphoid organs provide a site for immune responses to occur and are populated by relatively mature [[Lymphocytes#T cells|T cells]] and [[Lymphocytes#B cells|B cells]], [[Macrophages|macrophages]] and dendritic cells; each tissue seems to be preferentially populated by lymphocyte types that specialise in the antigens that are most likley to be presented at that site. The secondary lymphoid tissues are:
 
*[[Lymph Nodes - Anatomy & Physiology|The Lymph nodes]]
 
*[[Lymph Nodes - Anatomy & Physiology|The Lymph nodes]]
 
*[[Spleen - Anatomy & Physiology|The Spleen]]
 
*[[Spleen - Anatomy & Physiology|The Spleen]]
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