Neutrophils are a type of granulocytic white blood cell. They are distinguished by their lobed nucleus and the presence of fine purple granules in their cytoplasm (under H&E or other Romanovsky stains). Neutrophils are phagocytotic cells capable of ingesting and killing bacteria and other pathogens. They are the most numerous white blood cells, with 2.0 - 7.5 x 10^9 neutrophils/ L blood of a healthy individual.
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by Robert McLay and John Krause