+A lymph node is a small, bean-shaped organ of the [immune system](/wiki/immune_system), scattered throughout the body. They act as filters for [lymph](/wiki/lymph), trapping foreign particles and abnormal cells, vital for the body's defense.
+## See also
+- [Immunity](/wiki/immunity)
+- [Spleen](/wiki/spleen)
+- [T Cells](/wiki/t_cells)
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