Col SEM of platelets in early stage of aggregation

Bildnummer 12070353
Col SEM of platelets in early stage of aggregation
Platelets. Coloured Scanning Electron Micrograph (SEM) of activated blood platelets. Platelets (thrombocytes) are the smallest blood cells. Unactivated platelets are oval shaped,while activated platelets (as seen here) have dendritic processes or pseudopodia. They are non-nucleated cells formed in the bone marrow. Platelets survive for about 9 days. They function in two ways. First,they help plug defects in the walls of damaged blood vessels. Secondly,they are involved in clotting and the release of serotonin,a compound which reduces blood flow by constricting the damaged vessels. Magnification: unknown
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Biophoto Associates
Bildgröße: 5028 px × 3537 px
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