Neutrophil and trapped bacteria, TEM

Neutrophil and trapped bacteria. Colouredtransmission electron micrograph (TEM) of Neisseria gonorrhoeae bacteria (orange) trapped bya neutrophil (blue), a type of white blood cell.The neutrophil has trapped the bacteria withextruded material that forms a net-like structurecalled a NET (neutrophil extracellular trap). Theneutrophil will engulf (phagocytose) the bacteriaand destroy them as part of the body's immuneresponse. N. gonorrhoeae is a Gram-negativebacteria that causes the sexually transmittedinfection gonorrhoea.

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