Eosinophil white blood cell, TEM

Eosinophil white blood cell, TEM

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This image is part of the feature Understanding Asthma

Credit: NIBSC/SCIENCE PHOTO LIBRARY

Caption: False-colour transmission electron micrograph of a section through an eosinophil, a type of white blood cell. Eosinophils possess a large bilobed nucleus (left, yellow & blue) & a cytoplasm packed with specific granules (orange circles). Each granule contains a dense crystalloid of uncertain function & some enzymes, including histaminase. Eosinophil numbers increase in certain parasitic infections & notably, in asthma, where the cell is now regarded as the most important inflammatory factor in tissue damage. Toxic concentrations of eosinophil products have been identified in asthmatic lungs. Magnification: x3125 at 6x4.5cm size.

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Keywords: anatomy, asthma, cells, eosinophil, eosinophil in, human body, images, immune, magnified image, microscopic photos, subjects, transmission electron micrograph, white blood cell

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