Coloured TEM of granules in a human mast cell

Numéro d’image : 11869922
Coloured TEM of granules in a human mast cell
Granules in a mast cell. Coloured transmission electron micrograph (TEM) of a section through granules inside a human mast cell (mastocyte). A mast cell is a type of white blood cell involved in immune and inflammation responses. Here,the mast cell was obtained from the surface mucosa (epithelium) of a stomach ulcer. Four granules are visible. At centre the granule consists of characteristic scrolls that form spirals,made up mainly of proteins. Such granules contain substances like histamine which is released by the mast cell as an allergic or inflammatory response,in this case at the site of a stomach ulcer. Magnification x72,000 at 6x4.5cm size
Licence : Droits gérés
Crédit: Science Photo Library / Lounatmaa, Dr. Kari
Taille de l’image : 3688 px × 4861 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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