<P> Platelets , or thrombocytes or yellow blood cells , are very small , irregularly shaped clear cell fragments ( i.e. cells that do not have a nucleus containing DNA ) , 2 -- 3 μm in diameter , which derive from fragmentation of precursor megakaryocytes . The average lifespan of a platelet is normally just 5 to 9 days . Platelets 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 . Platelets release thread - like fibers to form these clots . </P>
<P> Platelets , or thrombocytes or yellow blood cells , are very small , irregularly shaped clear cell fragments ( i.e. cells that do not have a nucleus containing DNA ) , 2 -- 3 μm in diameter , which derive from fragmentation of precursor megakaryocytes . The average lifespan of a platelet is normally just 5 to 9 days . Platelets 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 . Platelets release thread - like fibers to form these clots . </P>
which is the smallest blood cell in human body
which is the smallest blood cell in human body
Platelets , or thrombocytes or yellow blood cells
Platelets , or thrombocytes or yellow blood cells