A platelet is a blood cell, without a nucleus, responsible for forming blood clots. Fibrinogen is a protein. It is soluble and during clot formation is converted into the insolulbe form known as fibrin. Fibrin is a protein. Fibrin is fromed from fibrinogen but is insoltulbe and forms interconnecting fibers that are critical for clot formation.
fibrin
is the activated form of
fibrinogen
which is constantly present in blood plasma. Fibrinogen is the inactivated soluble form of fibrin.
What is one of the many factors that stimulates platelet activation? Collagen. If a wound occurs collagen fibres become exposed . It is these collagen fibres, amongst other signals, that stimulate platelet activation. The initial plug that forms to seal an opening in a blood vessel is mostly composed of platelets Which is the correct sequence of events to stop bleeding? Blood vessel spasm, platelet plug formation, blood coagulation
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