platelet activation
A series of progressive, overlapping events triggered by exposure of the platelets to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug.
GO:0001775
cell activation
is_a
GO:0007596
blood coagulation
part_of
blood coagulation, platelet activation
exact