2.62 Clotting

1. Platelets are produced in bone marrows and they are fragments of cells.
2. When we have a wound, the platelets in the blood would be exposed to the air and therefore they release chemicals.
3. In the blood there is a protein called fibrinogen and this is soluble. However from the chemical in the platelets this turns into firbin.
4. This results in us getting a metrix, a netwrok of fibrin molecules on the wound and onto this solidifies red blood cells. This will dry over to form a scab beneath which the cells will begin to repair the wound.
5. The clotting which occurs right below the wound stops blood loss.
6. White blood cells will attack any pathogens present in the wound or underneath the wound.