Lymphatic system
The primary lymphoid organs are the site of maturation of T and B cells, marked respectively by the acquisition of the TCR and BCR in the thymus and in the bone marrow (see T cell ontogeny and of B cell ontogeny).
The secondary lymphoid organs are the preferred sites for the antigen /lymphocyte encounter. These organs are the sites of activation of T cells and B cells , and allow cellular cooperation of adaptive immunity.
Note: MALT = Mucosa-Associated Lymphoid Tissue.
Ces formations lymphoïdes ne seront pas développées ici.
Ces formations lymphoïdes ne seront pas développées ici.
