________ are large phagocytic white cells that spend most of their time outside the blood as fixed and freephagocytic cells.

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Monocytes are large phagocytic white blood cells that circulate in the bloodstream looking for pathogens to engulf and destroy. Once they encounter a pathogen, monocytes can migrate out of the bloodstream and into tissues, where they differentiate into macrophages or dendritic cells and continue to phagocytose pathogens.

________ Are Large Phagocytic White Cells That Spend Most of Their