B0004150 Mast cell showing histamine granules
Credit: University of Edinburgh. Wellcome Images
Colour-enhanced transmission electron microscope image of a mast cell full of histamine granules (pink). Histamine is released as part of an allergic reaction.
The diameter of the cell is approx. 8.4 micrometres.
Transmission electron micrograph
1980-2000 Published: –

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