Atlas One · Host Biology · Scale 04 — Cellular

Neutrophil

Most abundant circulating leukocyte (50–70% of WBC); first-responder innate immune cell produced at ~10¹¹/day in bone marrow. Kills bacteria and fungi via phagocytosis, respiratory burst (NADPH oxidase/MPO/HOCl), degranulation, and neutrophil extracellular traps (NETs).

Also known as: PMN, polymorphonuclear leukocyte, granulocyte, poly

Scale 04 — CellularScale
draftStatus
2026-06-05Last Reviewed
This is an auto-generated stub page built from atlas entry frontmatter. A richer hand-crafted page is planned. See the atlas source for the full entry including detailed body sections.
neutrophil

Neutrophil

Most abundant circulating leukocyte (50–70% of WBC); first-responder innate immune cell produced at ~10¹¹/day in bone marrow. Kills bacteria and fungi via phagocytosis, respiratory burst (NADPH oxidase/MPO/HOCl), degranulation, and neutrophil extracellular traps (NETs).