Lymphoid Organs Immunology Review 379
PRIMARY SECONDARY
Bone marrow Spleen
Thymus Lymph nodes
Tonsils
Appendix
Cutaneous-associated lymphoid tissue
Mucosal-associated lymphoid tissue (MALT), including Peyer’s patches in lower ileum
Bone marrow Spleen
Thymus Lymph nodes
Tonsils
Appendix
Cutaneous-associated lymphoid tissue
Mucosal-associated lymphoid tissue (MALT), including Peyer’s patches in lower ileum