Final answer:
The body's natural process of fibrinolysis gradually degrades and removes blood clots like deep vein thrombosis (DVT), while bradykinin promotes the relaxation of vessel walls and restoration of circulation.
Step-by-step explanation:
When a blood clot forms in a deep vein, such as deep vein thrombosis (DVT), the body has a natural process called fibrinolysis to gradually degrade and remove the clot. During fibrinolysis, plasminogen is converted into plasmin, which breaks down the fibrin of the clot. Additionally, bradykinin is released, relaxing the smooth muscle in the vessel walls and helping to restore circulation.