Bone Marrow - It is soft tissue inside bones, Tonsils - trap pathogens that enter the throat., Lymph Vessels - carry lymph and have valves inside them., Thymus - It is an organ in the chest. Some white blood cells finish developing in it., Lymph Nodes - concentrated in the armpits , neck , groin, Spleen - The largest lymphatic organ. It allows white blood cells to mature and store them ,

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