Platelets, or thrombocytes are small, regularly-shaped clear cell fragments (i.e. cells that do not have a nucleus containing DNA), 2–3um in diameter, which are derived from fragmentation of precursor megakaryocytes. The average lifespan of a platelet is normally just 5 to 9 days. Platelets play a fundamental role in hemostasis and are a natural source of growth factors. They circulate in the blood of mammals and are involved in hemostasis, leading to the formation of blood clots.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.