Which characteristic is a hallmark feature of neutrophils?

Which characteristic is a hallmark feature of neutrophils?

• A. Lack of granules
• B. Large, pale granules
• C. Prominent cytoplasmic granules
• D. Single-lobed nucleus

Answer: (C)

Neutrophils are granulocytes, so their cytoplasm contains visible granules that stain with standard dyes. These granules carry enzymes used to kill bacteria and digest material after phagocytosis, giving neutrophils a characteristic granulated appearance. That visible cytoplasmic granularity is the hallmark feature, making it the best match. In contrast, not having granules would describe agranulocytes, which neutrophils are not. Large, pale granules are more typical of other granulocytes like eosinophils, and a single-lobed nucleus is not typical for neutrophils, which usually show a multi-lobed (segmented) nucleus.

Neutrophils are granulocytes, so their cytoplasm contains visible granules that stain with standard dyes. These granules carry enzymes used to kill bacteria and digest material after phagocytosis, giving neutrophils a characteristic granulated appearance. That visible cytoplasmic granularity is the hallmark feature, making it the best match. In contrast, not having granules would describe agranulocytes, which neutrophils are not. Large, pale granules are more typical of other granulocytes like eosinophils, and a single-lobed nucleus is not typical for neutrophils, which usually show a multi-lobed (segmented) nucleus.