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Col TEM of an islet of Langerhans cell

Col TEM of an islet of Langerhans cell

P540/0033

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Credit

SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY

Caption

Islet of Langerhans. Coloured transmission electron Micrograph (TEM) of a slice through a cell of the hormone-secreting islet of Langerhans in the mammalian pancreas. The dark red round shapes in pink spaces are membrane-bound secretory granules. These contain a densely granular core of hormone separated from the surrounding membrane by a clear space. The islets of Langerhans secrete hormones into the blood - mostly insulin and glucagon, which control blood sugar levels. Magnification x14,400 at 6x4.5cm size.

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Model release not required. Property release not required.

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