![](http://www.alamy.com/thumbs/6/B6698B71-30E1-41B5-8D81-881DB7BE3348/2ADBX2C.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: 3774px × 4631px
Photo credit: © EYE OF SCIENCE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: -, biological, biology, blood, cell, coloured, cytotoxic, false-coloured, granular, healthy, immune, immunological, immunology, innate, killer, large, lymphocyte, natural, nk, normal, sem, system, white