And so one fibrin monomer will basically go on and interact with another fibrin monomer. And this process will continue until we basically form this very long meshlike structure and aggregate we call the fibrin or simply the blood clot. And this is basically what it looks like. So the proteolytic cleavage of fibrinogen exposes regions of the structure that can interact with other fibrin monomers. Therefore fibrin monomers spontaneously aggregate to form long fibers structures called fibrin. So we have the aggregation of these fibrin monomers because now these sections here are basically exposed and these sections found on the alpha unit, the red one can basically interact and fit into these holes found on the green structures, those gamma units.