Platelets

Platelets are also known as thromobocytes. They are cell fragments that lack nuclei and have been derived from their precursors - megakaryocytes. Approximately 1x10¹¹ platelets are produced daily.¹  They are involved in the prevention of blood loss from the body through haemostasis mechanisms of blood vessel constriction, platelet plug formation and blood coagulation.

References: ¹ J Thromb Haemost. 2009 Jul;7 Suppl 1:227-34.