Activated platelets, SEM

Bildnummer 12553839
Activated platelets, SEM
Activated platelets. Coloured scanning electron micrograph (SEM) of activated platelets (blue) attached to surgical gauze. Platelets are tiny blood cells that help the body form clots to stop bleeding. If a blood vessels gets damaged, it sends out signals that are picked up by platelets. The platelets then rush to the site of damage and form a plug, or clot, to repair the damage. The process of spreading across the surface of a damaged blood vessel to stop bleeding is called adhesion. This is because when platelets get to the site of the injury, they grow sticky tentacles that help them adhere. They also send out chemical signals to attract more platelets to pile onto the clot in a process called aggregation. Magnification: x4000 at 10cm wide.
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Gschmeissner, Steve
Bildgröße: 5308 px × 3292 px
Modell-Rechte: nicht erforderlich
Eigentums-Rechte: nicht erforderlich
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