+**White Blood Cell** are vital components of [blood](/wiki/blood), acting as the body's primary defenders. These colorless cells patrol the bloodstream, identifying and neutralizing foreign invaders as a core part of the [immune system](/wiki/immune_system).
+## See also
+- [Red Blood Cell](/wiki/red_blood_cell)
+- [Immunity](/wiki/immunity)
+- [Pathogen](/wiki/pathogen)
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