Concept
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Platelets and Coagulation Factors
How platelets are made and how they work
(a) Platelets are formed from large cells called megakaryocytes. The megakaryocyte breaks up into thousands of fragments that become platelets. (b) Platelets are required for clotting of the blood. The platelets collect at a wound site in conjunction with other clotting factors, such as fibrinogen, to form a fibrin clot that prevents blood loss and allows the wound to heal.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Components of the Blood. October 17, 2013."
http://cnx.org/content/m44804/latest/Figure_40_02_04ab.jpg
OpenStax CNX
CC BY 3.0.