![](http://www.alamy.com/thumbs/6/3D9396C3-0630-4E6D-9B6F-019B44008892/2ADBX26.jpg)
Coloured scanning electron micrograph (SEM) of a natural killer (NK) cell. NK cells are a type of white blood cell and a component of the immune syste
Coloured scanning electron micrograph (SEM) of a natural killer (NK) cell. NK cells are a type of white blood cell and a component of the immune system. They recognise certain proteins, or antigens, on virus-infected or tumour cells and destroy them. Magnification: x4,660 when printed at 10 centimetres wide.
Size: 4839px × 3612px
Photo credit: © EYE OF SCIENCE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: -, background, biological, biology, blood, blue, cell, coloured, cytotoxic, false-coloured, granular, healthy, immune, immunological, immunology, innate, killer, large, lymphocyte, natural, nk, normal, sem, system, white