Fibrinogen
Platelets
No, serums do not contain fibrinogen. Fibrinogen is a protein found in blood plasma that plays a key role in blood clotting. Serum is the liquid component of blood that remains after clotting has occurred, and it does not contain fibrinogen or other clotting factors.
i am the clotting power
I'm not going to get into the nitty-gritty specifics of the explanation, but I can say that yes, saliva does contain some of the blood clotting factors found in normal blood plasma.
This occurs because there is no clotting factor or blood cell in the serum. The blood serum would only contain the blood plasma.
Blood does not contain fiber in the way that dietary fiber is found in plant-based foods. However, it does contain fibrinogen, a protein that plays a crucial role in blood clotting. When blood clots, fibrinogen is converted into fibrin, which forms a mesh that helps to stop bleeding. So, while blood does not have fiber, it does have components related to clotting that are similar in name.
Platelets help with blood clotting
The chief plasma component to the clotting of blood is the platelet. The additional components include blood clotting factors.
Red blood cells do not initiate clotting. Platelets initiate clotting.
These cells contain granules that contain substances that make blood vessels leaky, and another substance that assists in blood clotting.
Hemophilia
Plasma is the liquid component of blood. It does not cause the clotting. The part of blood that causes clotting are the platelets.