Now, what exactly is the blood clot and cascade? Well, it's nothing more than a series of protein interactions and enzyme interactions that ultimately lead to the formation of these clumps of molecules we call blood clots. And these blood clots attached to an aggregate along that rupture on the blood vessel. And that creates a watertight seal that prevents the movement of blood out of that blood vessel and that ultimately prevents the medical condition we call shock. It prevents the person from going into shock. Now, let's begin by taking a look at the following illustration.