What role do white blood cells play in the immune system?

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White blood cells, also known as leukocytes, are a vital component of the immune system. Their primary role is to defend the body against both infectious disease and foreign invaders. There are several types of white blood cells, each with specific functions that contribute to the immune response. For instance, some white blood cells, like lymphocytes, are responsible for recognizing and remembering pathogens, while others, like phagocytes, can engulf and destroy bacteria and viruses.

This defensive capability is crucial for maintaining health, as it helps prevent infections and diseases from taking hold in the body. The immune system's effectiveness relies heavily on the proper functioning and coordination of these white blood cells, as they work together to identify and attack harmful organisms that can cause illness. Their ability to adapt and respond to new threats is essential for long-term health and immunity.

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