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 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 3543 px × 2684 px |
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