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Macrophages are important cells of the immune system that are formed in response to an infection or accumulating damaged or dead cells. Macrophages are large, specialized cells that recognize, engulf and destroy target cells. The term macrophage is formed by the combination of the Greek terms "makro" meaning big and "phagein" meaning eat.
The macrophages present in humans are around 21 micrometres in diameter. They can survive for months at a time. They are also involved in the development of non-specific or innate immunity.
Related Journals of Macrophages