WBCs

**WBCs**

WBCs, or white blood cells, are a vital part of the immune system, responsible for defending the body against infections and foreign invaders. They circulate throughout the bloodstream and tissues, identifying and attacking pathogens such as bacteria, viruses, and other harmful organisms. Various types of WBCs perform specialized functions, including engulfing microbes, producing antibodies, and coordinating immune responses. Understanding WBCs is essential in fields like medicine, immunology, and health sciences, as their count and activity are indicators of overall immune function and can help diagnose a range of conditions.