Lymph NodesJAMA Small, bean-sized organs of the immune system, distributed throughout the body. Lymph fluid is filtered through the lymph nodes, in which all types of lymphocytes take up temporary residence. Antigens that enter the body find their way into lymph or blood and are filtered out by the lymph nodes or spleen, respectively, for attack by the immune system. See also Antigen; Lymphocyte.
Lymph Node (Lymph Gland):SFAF
a small, bean-sized organ located throughout
the body, with concentrations in the neck, groin and armpits. Lymph nodes
filter out antigens and are the site of antigen presentation and immune
activation. The lymph nodes are a reservoir site for HIV.
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