Coloured TEM of a section through an eosinophil

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Coloured TEM of a section through an eosinophil

False colour transmission electron micrograph of a section through an eosinophil, a type of white blood cell. Eosinophils possess a large bilobed nucleus (left) and a cytoplasm packed with specific granules (circular), each containing a dense crystalloid. The matrix of the granules contains enzymes, including histaminase; the function of the crystalloids is uncertain. The population of circulating eosinophils increases in certain parasitic infections such as hookworm, but their role in such processes is unclear. Eosinophils are involved in inflammatory & immune responses, often in conjunction with other white cells. Mag: x4, 000 at 6x7cm, x2, 000 at 35mm size

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6446529

© NIBSC/SCIENCE PHOTO LIBRARY

Eosinophil Immune White Blood Cell Cells

EDITORS COMMENTS
This print showcases a false colour transmission electron micrograph of a section through an eosinophil, one of the remarkable white blood cells found in our immune system. The image reveals the intricate details of this unique cell type, with its large bilobed nucleus on the left and a cytoplasm densely packed with specific granules that appear circular in shape. Each granule contains a dense crystalloid, whose exact function remains uncertain to scientists. However, it is known that these granules contain various enzymes, including histaminase, which play crucial roles in inflammatory and immune responses within our bodies. Interestingly, the population of circulating eosinophils tends to increase during certain parasitic infections like hookworms. Despite their involvement in such processes being unclear at present, eosinophils are recognized as key players alongside other white blood cells when it comes to mounting effective defenses against pathogens. The level of magnification used for this photograph is truly impressive - captured at 4x magnification for a 6x7cm print size or 2x magnification for a 35mm size. This stunning visual representation provides us with invaluable insights into the anatomy and functioning of these vital components within our human body's defense mechanisms.

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