Blood clotting is basically a domino effect, it takes one thing to activate another. Blood clotting is like the glue that holds the platelets together. Mrs.Gess said in class that the blood clotting process is like a shrimp net it catches all this stuff and makes a patch over the wound or open area and helps keep the blood in the vessels. The blood clotting process is also know as coagulation. It uses many different things and steps to form this "scab" over the area. Coagulation can occur in two different steps: Intrinsic pathway and the Extrinsic pathway. The Intrinsic has a few more steps than the Extrinsic. Most of the things used in this process are proteins that are put together in the live. They are number from one to thirteen. The first step in the intrinsic pathway is to make things sticky, then to trigger an activator, that then activates thrombin which helps clot the blood, the some more steps are added to help make the clot so that way it is all weaved together to keep the blood in the vessel.
This is a picture of a blood clot. Red blood cells caught in fibrin mesh.
Here is a picture out of our lecture book that shows all the steps and substances that are needed to help clot blood.
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