KENNETH EWARD / BIOGRAFX / SCIENCE PHOTO LIBRARY KENNETH EWARD / BIOGRAFX / SCIENCE PHOTO LIBRARY
Neutrophil. Artwork based on an electron micrograph showing a neutrophil white blood cell. Neutrophils, also known as polymorphonuclear white blood cells or polymorphs, have large, highly lobulated nuclei (cream/blue). Their cytoplasm (pale blue) contains large digestive lysosomes (purple/blue). Neutrophils protect the body from infection by engulfing and digesting invading microorganisms by phagocytosis. These highly mobile cells migrate to areas of tissue damage. However, after a burst of activity they degenerate, as the enzymes they use quickly become pus.
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