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Published online by Cambridge University Press:  04 May 2011

Lincoln County Hospital
Department of Haematology, Nottingham University Hospitals


Platelets are an essential component of the first step in the process of haemostasis, plugging defects in the endothelium and providing a surface for secondary haemostasis to occur, via the coagulation pathway. Platelet aggregation and activation cause granule release of von Willebrand factor, ADP and serotonin, which, in turn, results in recruitment of more platelets to form the platelet plug. This serves to stop the bleeding, and also to activate the coagulation pathway on the surface of the activated platelets, leading to a firm fibrin clot.

Research Article
Copyright © Cambridge University Press 2011

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