blood Flashcards
1
Q
how are platelets formed
A
in the bone marrow by fragmentation of the cytoplasm of megakaryocutes
2
Q
what is the regulator of platelets
A
thrombopoietin
3
Q
where is thrombopoietin produced ?
A
95% produced by the liver
4
Q
what do platelets have on their surface
A
glycoproteins
5
Q
what is the function of the glycoproteins
A
facilitates adhesion to collagen
important in adhesion and aggregation of platlets
6
Q
what is the function of platelets
A
formation of plugs during the haemostatic response to an injury
7
Q
what is the role of von Willebrand factor
A
a large glycoprotein involved in platelet adhesion to the vessel wall and to other platelets (aggregation)
