What is the lymphatic system?
The lymphatic system contains a wide variety of tissues, cells, vessels, organs, and lymph itself, which is a fluid that eliminates waste products. Lymphatic vessels transport lymph fluid from the body’s tissues to the rest of the circulatory system.
The primary lymphoid organs include bone marrow and the thymus. Bone marrow produces lymphocytes, and the thymus creates T-lymphocytes. Both substances are types of white blood cells that allow the immune system to fight off diseases and infections.
Meanwhile, the secondary lymphoid organs are the spleen and lymph nodes. Spleen lymphocytes fight off antigens, simultaneously removing pathogens and aging red blood cells. The lymph nodes protect the immune system by filtering out cancer cells and foreign particles.